{ } a. [ Gr. &unr_; hollowed all round; 'amfi` + &unr_; hollow. ] (Zool.) Having both ends concave; biconcave; -- said of vertebræ. [ 1913 Webster ]

‖n. [ Gr. &unr_;, fr. &unr_;, to communicate; &unr_; up + &unr_; to make common, &unr_; common. ] (Rhet.) A figure by which a speaker appeals to his hearers or opponents for their opinion on the point in debate. Walker. [ 1913 Webster ]

n. [ Gr. blasto`s sprout + koi^los hollow. ] (Biol.) The cavity inside a blastula; -- also called segmentation cavity. [ 1913 Webster ]

adj. of or pertaining to a blastocoel. [ WordNet 1.5 ]

‖n. [ L., fr. Gr. &unr_;&unr_;&unr_;&unr_;&unr_;&unr_;&unr_;&unr_; of ill habits, &unr_;&unr_; &unr_;&unr_;&unr_;&unr_;&unr_;&unr_;&unr_;&unr_; an ill habit; kako`s bad + &unr_; habit ] 1. A bad custom or habit; an insatiable desire; as, cacoëthes scribendi, “The itch for writing”. Addison. [ 1913 Webster ]

2. (Med.) A bad quality or disposition in a disease; an incurable ulcer. [ 1913 Webster ]

{ } a. [ L. coeliacus, Gr. &unr_;, fr. &unr_; belly, fr. koi^los hollow. ] Relating to the abdomen, or to the cavity of the abdomen. [ 1913 Webster ]

Cœliac artery (Anat.), the artery which issues from the aorta just below the diaphragm; -- called also cœliac axis. --
Cœliac flux,
Cœliac passion (Med.), a chronic flux or diarrhea of undigested food. [ 1913 Webster ]

n. (Zool.) See Cæcilian. [ 1913 Webster ]

n. An educating together, of different sexes or races; -- now used almost exclusively in reference to the education males and females together. [ WordNet 1.5 +PJC ]

-- Co*ed`u*ca"tion*al a. [1913 Webster]

n. Joint efficacy. [ 1913 Webster ]

n. Joint efficiency; cooperation. Glanvill. [ 1913 Webster ]

a. Cooperating; acting together to produce an effect.

Co`ef*fi"cient*ly, adv. [1913 Webster]

n. 1. That which unites in action with something else to produce the same effect. [ 1913 Webster ]

2. [ Cf. F. coefficient. ] (Math.) A number or letter put before a letter or quantity, known or unknown, to show how many times the latter is to be taken; as, 6x; bx; here 6 and b are coefficients of x. [ 1913 Webster ]

3. (Physics) A number, commonly used in computation as a factor, expressing the amount of some change or effect under certain fixed conditions as to temperature, length, volume, etc.; as, the coefficient of expansion; the coefficient of friction. [ 1913 Webster ]

Arbitrary coefficient (Math.), a literal coefficient placed arbitrarily in an algebraic expression, the value of the coefficient being afterwards determined by the conditions of the problem. [ 1913 Webster ]

n. [ From its inventor, Baron Coehorn. ] (Mil.) A small bronze mortar mounted on a wooden block with handles, and light enough to be carried short distances by two men. [ 1913 Webster ]

a. [ Gr. koi^los hollow + &unr_; spine. ] (Zool.) Having hollow spines, as some ganoid fishes.

n. See Electron. [ Webster 1913 Suppl. ]

{ ‖i>or ‖ } n. pl. [ NL., fr. Gr. koi^los hollow + &unr_; intestines. ] (Zool.) A comprehensive group of Invertebrata, mostly marine, comprising the Anthozoa, Hydrozoa, and Ctenophora. The name implies that the stomach and body cavities are one. The group is sometimes enlarged so as to include the sponges. [ 1913 Webster ]

a. (Zool.) Belonging to the Cœlentera. -- n. One of the Cœlentera. [ 1913 Webster ]

‖n. [ NL., fr. Gr. koili`a a cavity of the body, a ventricle. ] (Anat.) A cavity. [ 1913 Webster ]

☞ The word is applied to the ventricles of the brain, the different ventricles being indicated by prefixes like those characterizing the parts of the brain in which the cavities are found; as, epicœlia, mesocœlia, metacœlia, procœlia, etc. B. G. Wilder. [ 1913 Webster ]

a. [ Gr. koi^los hollow + &unr_;, &unr_;, tooth. ] (Zool.) Having hollow teeth; -- said of a group lizards. -- n. One of a group of lizards having hollow teeth. [ 1913 Webster ]

n. any of various orchids of the genus Coelogyne which may have clusters of fragrant lacy snow-white flowers; sinister salmon-pink solitary flowers; chainlike racemes of topaz and chocolate brown flowers; spikes of delicate white spice-scented flowers; or emerald green flowers marked with blue-black. [ WordNet 1.5 ]

a. [ Gr. koi^los hollow + &unr_; seed. ] (Bot.) Hollow-seeded; having the ventral face of the seedlike carpels incurved at the ends, as in coriander seed. [ 1913 Webster ]

n. an optical instrument used to follow the path of a celestial body and reflect its light into a telescope; it has a movable and a fixed mirror. [ WordNet 1.5 ]

‖n. [ NL., fr. Gr. &unr_; a hollow, neut. of koi^los hollow. ] (Anat.) See Body cavity, under Body. [ 1913 Webster ]

n. [ L. coëmptio, fr. coëmere to buy up. See Emption. ] The act of buying the whole quantity of any commodity. [ R. ] Bacon. [ 1913 Webster ]

‖n. [ Native name. ] (Zool.) The Brazilian porcupine (Cercolades prehensiles syn. Sphingurus prehensiles), remarkable for its prehensile tail. [ 1913 Webster ]

{ ‖ n. [ NL. coenenchyma, fr. Gr. koino`s common + &unr_; something poured in. Formed like parenchyma. ] (Zool.) The common tissue which unites the polyps or zooids of a compound anthozoan or coral. It may be soft or more or less ossified. See Coral. [ 1913 Webster ]

‖n. [ NL., fr. Gr. koino`s common + &unr_; sensation. ] (Physiol.) Common sensation or general sensibility, as distinguished from the special sensations which are located in, or ascribed to, separate organs, as the eye and ear. It is supposed to depend on the ganglionic system. [ 1913 Webster ]

n. a member of a religious order living in common. Same as Cenobite. [ 1913 Webster ]

adj. of or relating to or befitting cenobites or their practices of communal living. Opposite of eremitic.
Syn. -- cenobitic, cenobitical. [ WordNet 1.5 ]

‖n. [ NL., fr. Gr. koino`s common + o'i^kos house. ] (Zool.) The common tissue which unites the various zooids of a bryozoan. [ 1913 Webster ]

n. [ Gr. &unr_;; koino`s common + &unr_; marraige. ] The state of a community which permits promiscuous sexual intercourse among its members; -- as in certain primitive tribes or communistic societies. [ Written also cenogamy. ] [ 1913 Webster ]

n. [ Gr. koino`s common + &unr_;, &unr_;, flesh. ] (Zool.) The common soft tissue which unites the polyps of a compound hydroid. See Hydroidea. [ 1913 Webster ]

‖n. [ NL. fr. Gr. koino`s common + o'yra` tail. ] (Zool.) The larval stage of a tapeworm (Tænia cœnurus) which forms bladderlike sacs in the brain of sheep, causing the fatal disease known as water brain, vertigo, staggers or gid. [ 1913 Webster ]

☞ This bladder worm has on its surface numerous small heads, each of which, when swallowed by a dog, becomes a mature tapeworm in the dog's intestine. [ 1913 Webster ]

(Biochem.) a molecule that is essential for the activity of some enzymes; it may exist free in solution within a living organism, but functions by binding to an enzyme to assist in catalyzing a reaction. The molecule itself may be temporarily changed during the reaction, but is ultimately restored to its original form. Many vitamins function as coenzymes. [ PJC ]

(Biochem.) a coenzyme (C21H36N7O16P3S) that participates in the transfer of acetyl groups in biochemical reactions; -- abbreviated CoA. It contains adenosine, phosphate, pantothenic acid and cysteamine groups. The acetyl group to be transferred during biosynthesis is temporarily attached to the free sulhydryl of the cysteamine group to form a thioester, in which state it is called acetyl coenzyme A. The strength of a preparation of coenzyme A may be expressed by the Lippman unit; one milligram of CoA contains 413 Lippman units. [ PJC ]

a. [ L. coaequalis; co- + aequalis equal. ] Being on an equality in rank or power. -- n. One who is on an equality with another. [ 1913 Webster ]

In once he come to be a cardinal,
He'll make his cap coequal with the crown. Shak. [ 1913 Webster ]

n. The state of being on an equality, as in rank or power. [ 1913 Webster ]

adv. With coequality. [ 1913 Webster ]

v. t. [ imp. & p. p. Coerced p. pr. & vb. n. Coercing. ] [ L. coërcere; co- + arcere to shut up, to press together. See Ark. ] 1. To restrain by force, especially by law or authority; to repress; to curb. Burke. [ 1913 Webster ]

Punishments are manifold, that they may coerce this profligate sort. Ayliffe. [ 1913 Webster ]

2. To compel or constrain to any action; as, to coerce a man to vote for a certain candidate. [ 1913 Webster ]

3. To compel or enforce; as, to coerce obedience.

Syn. -- To Coerce, Compel. To compel denotes to urge on by force which cannot be resisted. The term aplies equally to physical and moral force; as, compelled by hunger; compelled adverse circumstances; compelled by parental affection. Coerce had at first only the negative sense of checking or restraining by force; as, to coerce a bad man by punishments or a prisoner with fetters. It has now gained a positive sense., viz., that of driving a person into the performance of some act which is required of him by another; as, to coerce a man to sign a contract; to coerce obedience. In this sense (which is now the prevailing one), coerce differs but little from compel, and yet there is a distinction between them. Coercion is usually acomplished by indirect means, as threats and intimidation, physical force being more rarely employed in coercing. [ 1913 Webster ]

a. Capable of being coerced.

-- Co*er"ci*ble*ness, n. [1913 Webster]

n. [ L. coercio, fr. coercere. See Coerce. ] 1. The act or process of coercing. [ 1913 Webster ]

2. (Law) The application to another of either physical or moral force. When the force is physical, and cannot be resisted, then the act produced by it is a nullity, so far as concerns the party coerced. When the force is moral, then the act, though voidable, is imputable to the party doing it, unless he be so paralyzed by terror as to act convulsively. At the same time coercion is not negatived by the fact of submission under force. “Coactus volui” (I consented under compulsion) is the condition of mind which, when there is volition forced by coercion, annuls the result of such coercion. Wharton. [ 1913 Webster ]

a. Coercive. “Coercitive power in laws.” Jer. Taylor. [ 1913 Webster ]

a. Serving or intended to coerce; having power to constrain.

-- Co*er"cive*ly, adv. -- Co*er"cive*ness, n. [ 1913 Webster ]

Coercive power can only influence us to outward practice. Bp. Warburton. [ 1913 Webster ]

Coercive force or
Coercitive force (Magnetism), the power or force which in iron or steel produces a slowness or difficulty in imparting magnetism to it, and also interposes an obstacle to the return of a bar to its natural state when active magnetism has ceased. It plainly depends on the molecular constitution of the metal. Nichol. [ 1913 Webster ]

The power of resisting magnetization or demagnization is sometimes called coercive force. S. Thompson. [ 1913 Webster ]

n. [ L. coeruleus cerulean + lignum wood + E. quinone. ] (Chem.) A bluish violet, crystalline substance obtained in the purification of crude wood vinegar. It is regarded as a complex quinone derivative of diphenyl; -- called also cedriret. [ 1913 Webster ]

a. Partaking of the same essence. -- Co`es*sen"tial*ly, adv. [1913 Webster]

We bless and magnify that coessential Spirit, eternally proceeding from both [The Father and the Son]. Hooker. [1913 Webster]

n. Participation of the same essence. Johnson. [ 1913 Webster ]

n. Joint establishment. Bp. Watson. [ 1913 Webster ]

n. Joint estate. Smolett. [ 1913 Webster ]

n. A person coetaneous with another; a contemporary. [ R. ] [ 1913 Webster ]

A . . . coetanean of the late earl of Southampton. Aubrey. [ 1913 Webster ]

a. [ L. coaetaneus; co- + aetas age. ] Of the same age; beginning to exist at the same time; contemporaneous.

-- Co`e*ta"ne*ous*ly, adv. [1913 Webster]

And all [members of the body] are coetaneous. Bentley. [1913 Webster]