Webster's Unabridged Dictionary - Letter O - Page 5
Obstetric (a.) Alt. of Obstetrical.
Obstetrical (a.) Of or pertaining to midwifery, or the delivery of women in childbed; as, the obstetric art.
Obstetricate (v. i.) To perform the office of midwife.
Obstetricate (v. t.) To assist as a midwife.
Obstetrication (n.) The act of assisting as a midwife; delivery.
Obstetrician (n.) One skilled in obstetrics; an accoucheur.
Obstetricious (a.) Serving to assist childbirth; obstetric; hence, facilitating any bringing forth or deliverance.
Obstetrics (n.) The science of midwifery; the art of assisting women in parturition, or in the trouble incident to childbirth.
Obstetricy (n.) Obstetrics.
Obstinacy (n.) 頑固，固執；頑強 [U]；（病痛等的）難治，難解除 [U] A fixedness in will, opinion, or resolution that can not be shaken at all, or only with great difficulty; firm and usually unreasonable adherence to an opinion, purpose, or system; unyielding disposition; stubborness; pertinacity; persistency; contumacy.
You do not well in obstinacy To cavil in the course of this contract. -- Shak.
To shelter their ignorance, or obstinacy, under the obscurity of their terms. -- Locke.
Obstinacy (n.) The quality or state of being difficult to remedy, relieve, or subdue; as, the obstinacy of a disease or evil.
Syn: Pertinacity; firmness; resoluteness; inflexibility; persistency; stubbornness; perverseness; contumacy.
Usage: {Obstinacy}, {Pertinacity}. Pertinacity denotes great firmness in holding to a thing, aim, etc. Obstinacy is great firmness in holding out against persuasion, attack, etc. The former consists in adherence, the latter in resistance. An opinion is advocated with pertinacity or defended with obstinacy. Pertinacity is often used in a good sense; obstinacy generally in a bad one. "In this reply was included a very gross mistake, and if with pertinacity maintained, a capital error." -- Sir T. Browne. "Every degree of obstinacy in youth is one step to rebellion." -- South.
Obstinacy (n.) The trait of being difficult to handle or overcome [syn: {stubbornness}, {obstinacy}, {obstinance}, {mulishness}].
Obstinacy (n.) Resolute adherence to your own ideas or desires [syn: {stubbornness}, {bullheadedness}, {obstinacy}, {obstinance}, {pigheadedness}, {self-will}].
Obstinate (a.) 頑固的，固執的；頑強的，不屈服的；（疾病等）難治的；難以控制 Pertinaciously adhering to an opinion, purpose, or course; persistent; not yielding to reason, arguments, or other means; stubborn; pertinacious; -- usually implying unreasonableness.
I have known great cures done by obstinate resolution of drinking no wine. -- Sir W. Temple.
No ass so meek, no ass so obstinate. -- Pope.
Of sense and outward things. -- Wordsworth.
Obstinate (a.) Not yielding; not easily subdued or removed; as, obstinate fever; obstinate obstructions.
Syn: Stubborn; inflexible; immovable; firm; pertinacious; persistent; headstrong; opinionated; unyielding; refractory; contumacious. See {Stubborn}. -- {Ob"sti*nate*ly}, adv. -- {Ob"sti*nate*ness}, n.
Obstinate (a.) Tenaciously unwilling or marked by tenacious unwillingness to yield [syn: {stubborn}, {obstinate}, {unregenerate}] [ant: {docile}].
Obstinate (a.) Stubbornly persistent in wrongdoing [syn: {cussed}, {obdurate}, {obstinate}, {unrepentant}]
Obstinate (a.) Resistant to guidance or discipline; "Mary Mary quite contrary"; "an obstinate child with a violent temper"; "a perverse mood"; "wayward behavior" [syn: {contrary}, {obstinate}, {perverse}, {wayward}].
Obstinate (v.) Persist stubbornly; "he obstinates himself against all rational arguments."
Obstinate (a.) Inaccessible to the truth as it is manifest in the splendor and stress of our advocacy.
The popular type and exponent of obstinacy is the mule, a most intelligent animal.
Obstinate (a.) 頑固的，固執的；倔強的 Unreasonably determined, especially to act in a particular way and not to change at all, despite what anyone else says.
// He can be very obstinate at times.
// Her obstinate refusal to compromise.
Obstinate (a.) [ Before noun ] 棘手的；難以清除的；難以克服的 Used to describe a problem, situation, or thing that is difficult to deal with, remove, or defeat.
// Obstinate weeds.
Invading troops met with obstinate resistance by guerrilla forces.
Obstination (n.) 固執，執拗，頑固；頑強 Obstinacy; stubbornness. [Obs.] -- Jer. Taylor.
Obstipation (n.) The act of stopping up, as a passage.
Obstipation (n.) Obstinacy; perversity; obduracy.
Obstipation (n.) 【醫】【廢】頑性便秘 Extreme constipation.
Compare: Obstinacy
Obstinacy (n. pl. - cies) (or Obstinateness) 倔強，頑固，固執 The state or quality of being stubborn or refractory.
Compare: Obstinacy
Obstinacy (n.) The act or an instance of being stubborn or refractory.
Compare: Stubbornness
Stubbornness (n.) 頑固，倔強，頑強 Dogged determination not to change one's attitude or position on something.
// His error was sheer stubbornness in refusing to admit a mistake.
Obstreperous (a.) 吵鬧的，喧囂的，亂鬧的，任性的 Attended by, or making, a loud and tumultuous noise; clamorous; noisy; vociferous. "The obstreperous city." -- Wordsworth. "Obstreperous approbation." -- Addison.
Beating the air with their obstreperous beaks. -- B. Jonson.
Obstreperous (a.) Resistant to control; unruly. -- {Ob*strep"er*ous*ly}, adv. -- {Ob*strep"er*ous*ness}, n.
Obstreperous (a.) Noisily and stubbornly defiant; "obstreperous boys."
Obstreperous (a.) Boisterously and noisily aggressive; "kept up an obstreperous clamor."
Obstriction (n.) The state of being constrained, bound, or obliged; that which constrains or obliges; obligation; bond. [R.] -- Milton.
Obstringe (v. t.) To constrain; to put under obligation. [R.] -- Bp. Gardiner.
Obstructed (imp. & p. p.) of Obstruct.
Obstructed (a.) 阻塞的 Shut off to passage or view or hindered from action; "a partially obstructed passageway"; "an obstructed view"; "justice obstructed is not justice" [ant: {unobstructed}].
Obstructing (p. pr. & vb. n.) of Obstruct.
Obstruct (v. t.) 阻塞，堵塞；妨礙，阻擾，阻止；擋住（視線），遮住 To block up; to stop up or close, as a way or passage; to place an obstacle in, or fill with obstacles or impediments that prevent or hinder passing; as, to obstruct a street; to obstruct the channels of the body.
'T is the obstructed paths of sound shall clear. -- Pope.
Obstruct (v. t.) To be, or come, in the way of; to hinder from passing; to stop; to impede; to retard; as, the bar in the harbor obstructs the passage of ships; clouds obstruct the light of the sun; unwise rules obstruct legislation.
"Th' impatience of obstructed love." -- Johnson.
Syn: To bar; barricade; stop; arrest; check; interrupt; clog; choke; impede; retard; embarrass; oppose.
Obstruct (v.) Hinder or prevent the progress or accomplishment of; "His brother blocked him at every turn" [syn: {obstruct}, {blockade}, {block}, {hinder}, {stymie}, {stymy}, {embarrass}].
Obstruct (v.) Block passage through; "obstruct the path" [syn: {obstruct}, {obturate}, {impede}, {occlude}, {jam}, {block}, {close up}] [ant: {disengage}, {free}].
Obstruct (v.) Shut out from view or get in the way so as to hide from sight; "The thick curtain blocked the action on the stage"; "The trees obstruct my view of the mountains" [syn: {obstruct}, {block}].
Obstruct (v.) (v. i.) 設障礙 Hinder or prevent the progress or accomplishment of; "His brother blocked him at every turn" [syn: {obstruct}, {blockade}, {block}, {hinder}, {stymie}, {stymy}, {embarrass}].
Obstruct (v.) Block passage through; "obstruct the path" [syn: {obstruct}, {obturate}, {impede}, {occlude}, {jam}, {block}, {close up}] [ant: {disengage}, {free}].
Obstruct (v.) Shut out from view or get in the way so as to hide from sight; "The thick curtain blocked the action on the stage"; "The trees obstruct my view of the mountains" [syn: {obstruct}, {block}].
Obstructer (n.) 妨礙者；障礙物 One who obstructs or hinders.
Obstructer (n.) Someone who systematically obstructs some action that others want to take [syn: {obstructionist}, {obstructor}, {obstructer}, {resister}, {thwarter}].
Obstructer (n.) Any structure that makes progress difficult [syn: {obstruction}, {obstructor}, {obstructer}, {impediment}, {impedimenta}].
Obstruction (n.) 阻礙，妨礙；阻塞 [U]；阻塞物；障礙 [C] The act of obstructing, or state of being obstructed.
Obstruction (n.) That which obstructs or impedes; an obstacle; an impediment; a hindrance.
A popular assembly free from obstruction. -- Swift.
Obstruction (n.) The condition of having the natural powers obstructed in their usual course; the arrest of the vital functions; death. [Poetic]
To die, and go we know not where, To lie in cold obstruction, and to rot. -- Shak.
Syn: {Obstacle}; bar; barrier; impediment; clog; check; hindrance.
Usage: {Obstruction}, {Obstacle}. The difference between these words is that indicated by their etymology; an obstacle is something standing in the way; an obstruction is something put in the way. Obstacle implies more fixedness and is the stronger word. We remove obstructions; we surmount obstacles.
Disparity in age seems a greater obstacle to an intimate friendship than inequality of fortune. -- Collier.
The king expected to meet with all the obstructions and difficulties his enraged enemies could lay in his way. -- Clarendon.
Obstruction (n.) Any structure that makes progress difficult [syn: {obstruction}, {obstructor}, {obstructer}, {impediment}, {impedimenta}].
Obstruction (n.) The physical condition of blocking or filling a passage with an obstruction [syn: {obstruction}, {blockage}].
Obstruction (n.) Something immaterial that stands in the way and must be circumvented or surmounted; "lack of imagination is an obstacle to one's advancement"; "the poverty of a district is an obstacle to good education"; "the filibuster was a major obstruction to the success of their plan" [syn: {obstacle}, {obstruction}].
Obstruction (n.) The act of obstructing; "obstruction of justice."
Obstruction (n.) Getting in someone's way.
Obstruction (n.) [ C or U ] 廢棄的；過時的；淘汰的；老化的 Something that blocks a road, passage, entrance, etc. so that nothing can go along it, or the act of blocking something in this way.
// There's some kind of obstruction on the railway tracks.
Obstruction (n.) [ U ] 妨礙、阻撓某事發生或正常運行的動作或行為 Behaviour or actions that prevent something from happening or working correctly.
// They were charged with obstruction of the police/ of justice (= preventing the police/ law courts from doing their jobs).
Obstruction (n.) [ U ] （體育項目中的）阻擋犯規 In sport an occasion when one player gets in the way of another and so prevents them from moving freely.
// The referee said it was obstruction.
Obstructionism (n.) 蓄意阻撓（尤指在立法機關中的阻撓議事）[U] The act or the policy of obstructing progress. -- Lond. Lit. World.
Obstructionism (n.) Deliberate interference.
Obstructionism (n.) [ U ] (Formal) (Disapproving) 蓄意阻撓 The act of intentionally stopping or slowing down an official process.
Obstructionist (n.) [C] 蓄意阻撓者 One who hinders progress; one who obstructs business, as in a legislative body.
Obstructionist (a.) 蓄意阻撓（者）的，（在立法機關中）阻撓議事（者）的 Of or pertaining to obstructionists.
Obstructive (a.) Tending to obstruct; presenting obstacles; hindering; causing impediment.
Obstructive (n.) 妨礙者；障礙物 An obstructive person or thing.
Obstructive (a.) (Disapproving) 有意妨礙的，蓄意阻撓的；刁難的 Trying to stop someone from doing something by causing problems for them.
// We'd have made a decision by now if Jean hadn't been so obstructive.
Obstruent (a.) 【醫】阻塞的；阻塞體內管道的 Causing obstruction; blocking up; hindering; as, an obstruent medicine.
Obstruent (n.) 【醫】阻塞物（如腎結石）；收斂藥 Anything that obstructs or closes a passage; esp., that which obstructs natural passages in the body; as, a medicine which acts as an obstruent.
Obstupefaction (n.) See Stupefaction.
Obstupefactive (a.) Stupefactive.
Obstupefy (v. t.) See Stupefy.
Obtained (imp. & p. p.) of Obtain.
Obtaining (p. pr. & vb. n.) of Obtain.
Obtain (v. t.) To hold; to keep; to possess.
Obtain (v. t.) To get hold of by effort; to gain possession of; to procure; to acquire, in any way.
Obtain (v. i.) To become held; to gain or have a firm footing; to be recognized or established; to subsist; to become prevalent or general; to prevail; as, the custom obtains of going to the seashore in summer.
Obtain (v. i.) To prevail; to succeed.
Obtainable (a.) Capable of being obtained.
Obtainer (n.) One who obtains.
Obtainment (n.) The act or process of obtaining; attainment.
Obtected (a.) Covered; protected.
Obtected (a.) Covered with a hard chitinous case, as the pupa of certain files.
Obtemper (v. t. & i.) To obey (a judgment or decree).
Obtemperate (v. t.) To obey.
Obtended (imp. & p. p.) of Obtend.
Obtending (p. pr. & vb. n.) of Obtend.
Obtend (v. t.) To oppose; to hold out in opposition.
Obtend (v. t.) To offer as the reason of anything; to pretend.
Obtenebration (n.) The act of darkening; the state of being darkened; darkness.
Obtension (n.) The act of obtending.
Obtested (imp. & p. p.) of Obtest.
Obtesting (p. pr. & vb. n.) of Obtest.
Obtest (v. t.) To call to witness; to invoke as a witness.
Obtest (v. t.) To beseech; to supplicate; to beg for.
Obtest (v. i.) To protest.
Obtestation (n.) The act of obtesting; supplication; protestation.
Obtrectation (n.) Slander; detraction; calumny.
Obtruded (imp. & p. p.) of Obtrude.
Obtruding (p. pr. & vb. n.) of Obtrude.
Obtrude (v. t.) To thrust impertinently; to present to a person without warrant or solicitation; as, to obtrude one's self upon a company; to obtrude one's opinion on another.
The objects of our senses obtrude their particular ideas upon our minds, whether we will or no. -- Lock.
Obtrude (v. t.) To offer with unreasonable importunity; to urge unduly or against the will. --Milton.
Obtrude (v. i.) To thrust one's self upon a company or upon attention; to intrude.
Syn: To Obtrude, Intrude.
Usage: To intrude is to thrust one's self into a place, society, etc., without right, or uninvited; to obtrude is to force one's self, remarks, opinions, etc., into society or upon persons with whom one has no such intimacy as to justify such boldness.
Obtrude (v.) Push to thrust outward [syn: push out, obtrude, thrust out].
Obtrude (v.) Thrust oneself in as if by force; "The colors don't intrude on the viewer" [syn: intrude, obtrude].
Obtruder (n.) One who obtrudes. -- Boyle.
Obtruncate (v. t.) To deprive of a limb; to lop. [R.]
Obtruncation (n.) The act of lopping or cutting off. [R.] -- Cockeram.
Obtrusion (n.) The act of obtruding; a thrusting upon others by force or unsolicited; as, the obtrusion of crude opinions on the world.
Obtrusion (n.) That which is obtruded. -- Milton.
Obtrusionist (n.) One who practices or excuses obtrusion. [R.] -- Gent. Mag.
Obtrusive (a.) Disposed to obtrude; inclined to intrude or thrust one's self or one's opinions upon others, or to enter uninvited; forward; pushing; intrusive. -- Ob*tru"sive*ly, adv. -- Ob*tru"sive*ness, n.
Not obvious, not obtrusive, but retired. -- Milton.
Obtrusive (a.) Undesirably noticeable; "the obtrusive behavior of a spoiled child"; "equally obtrusive was the graffiti" [syn: obtrusive, noticeable] [ant: unnoticeable, unobtrusive].
Obtrusive (a.) Sticking out; protruding.
Obtunded (imp. & p. p.) of Obtund.
Obtunding (p. pr. & vb. n.) of Obtund.
Obtund (v. t.) To reduce the edge, pungency, or violent action of; to dull; to blunt; to deaden; to quell; as, to obtund the acrimony of the gall. [Archaic] --Harvey.
They . . . have filled all our law books with the obtunding story of their suits and trials. -- Milton.
Obtund (v.) Reduce the edge or violence of; "obtunded reflexes."
Obtundent (n.) (Med.) A substance which sheathes a part, or blunts irritation, usually some bland, oily, or mucilaginous matter; -- nearly the same as demulcent. --Forsyth.
Obtundent (n.) (Med.) A substance which sheathes a part, or blunts irritation, usually some bland, oily, or mucilaginous matter; -- nearly the same as demulcent. -- Forsyth.
Obtundent (a.) 使遲鈍的，使緩和的 Blunting irritation or lessening pain.
Obtundent (n.) 止痛藥；緩和劑；止痛劑 An agent that blunts pain or dulls sensibility.
Obtunder (n.) (Med.) That which obtunds or blunts; especially, that which blunts sensibility.
Obturation (n.) The act of stopping up, or closing, an opening. "Deaf by an outward obturation." -- Bp. Hall.
Obturator (n.) That which closes or stops an opening.
Obturator (n.) (Surg.) An apparatus designed to close an unnatural opening, as a fissure of the palate.
Obturator (n.) (Ordnance) Any device for preventing the escape of gas through the breech mechanism of a breech-loading gun; a gas check.
Obturator (n.) (Photog.) A camera shutter.
Obturator (a.) (Anat.) Serving as an obturator; closing an opening; pertaining to, or in the region of, the obturator foramen; as, the obturator nerve.
Obturator foramen (Anat.), An opening situated between the public and ischial parts of the innominate bone and closed by the obturator membrane; the thyroid foramen.
Obturator (n.) A prosthesis used to close an opening (as to close an opening of the hard palate in cases of cleft palate).
Obtusangular (a.) See Obstuseangular.
Compare: Obtuse-angled
Obtuse-angled, obtuse-angular (a.) Having an obtuse angle; as, an obtuse-angled triangle.
Obtuse (a.) 鈍的；愚鈍的 Not pointed or acute; blunt; -- applied esp. to angles greater than a right angle, or containing more than ninety degrees.
Obtuse (a.) Not having acute sensibility or perceptions; dull; stupid; as, obtuse senses. -- Milton.
Obtuse (a.) Dull; deadened; as, obtuse sound. -- Johnson. Obtuse-angled
Obtuse (a.) Of an angle; between 90 and 180 degrees [ant: {acute}].
Obtuse (a.) (of a leaf shape) Rounded at the apex.
Obtuse (a.) Lacking in insight or discernment; "too obtuse to grasp the implications of his behavior"; "a purblind oligarchy that flatly refused to see that history was condemning it to the dustbin"- Jasper Griffin [syn: {obtuse}, {purblind}].
Obtuse (a.) Slow to learn or understand; lacking intellectual acuity; "so dense he never understands anything I say to him"; "never met anyone quite so dim"; "although dull at classical learning, at mathematics he was uncommonly quick"- Thackeray; "dumb officials make some really dumb decisions"; "he was either normally stupid or being deliberately obtuse"; "worked with the slow students" [syn: {dense}, {dim}, {dull}, {dumb}, {obtuse}, {slow}].
Obtuse (a.) Obtuser, Obtusest, -- Obtusely (adv.), Obtuseness (n.), Stupid or unintelligent : not able to think clearly or to understand what is obvious or simple.
Obtuse (a.) mathematics : Not ending in a sharp point : measuring between 90 degrees and 180 degrees.
Obtuse (a.) Not pointed or acute : Blunt.
Obtuse (a.) Of an angle : exceeding 90 degrees but less than 180 degrees (2) : having an obtuse angle <an obtuse triangle> -- see Triangle illustration.
Obtuse (a.) Of a leaf : Rounded at the free end.
Obtuse (a.) Lacking sharpness or quickness of sensibility or intellect : Insensitive, Stupid.
Obtuse (a.) Difficult to comprehend : not clear or precise in thought or expression.
Obtuse-angled (a.) Alt. of obtuse-angular.
Obtuse-angular (a.) Having an obtuse angle; as, an obtuse-angled triangle.
Obtusely (adv.) In an obtuse manner.
Obtusely (adv.) In a stupid manner; "he had so rapaciously desired and so obtusely expected to find her alone" [syn: dumbly, densely, obtusely].
Obtuseness (n.) State or quality of being obtuse.
Obtuseness (n.) The quality of being slow to understand [syn: dullness, obtuseness].
Obtuseness (n.) The quality of lacking a sharp edge or point [ant: acuteness].
Obtusion (n.) The act or process of making obtuse or blunt.
Obtusion (n.) The state of being dulled or blunted; as, the obtusion of the senses. -- Harvey.
Obtusity (n.) Obtuseness. -- Lond. Quart. Rev.
Obumbrant (a.) (Zool.) Overhanging; as, obumbrant feathers.
Obumbrate (v. t.) To shade; to darken; to cloud. [R.] -- Howell.
Obumbration (n.) Act of darkening or obscuring. [R.] -- Sir T. More.
Obuncous (a.) Hooked or crooked in an extreme degree. -- Maunder.
Obvention (n.) The act of happening incidentally; that which happens casually; an incidental advantage; an occasional offering. [Obs.] "Tithes and other obventions." -- Spenser.
Legacies bequeathed by the deaths of princes and great persons, and other casualities and obventions. -- Fuller.