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a. Cup-shaped; saucer-shaped; acetabuliform. [ 1913 Webster ]

‖n. pl. [ NL. See Acetabuliferous. ] (Zool.) The division of Cephalopoda in which the arms are furnished with cup-shaped suckers, as the cuttlefishes, squids, and octopus; the Dibranchiata. See Cephalopoda. [ 1913 Webster ]

a. [ L. acetablum a little cup + -ferous. ] Furnished with fleshy cups for adhering to bodies, as cuttlefish, etc. [ 1913 Webster ]

a. [ L. acetabulum + -form. ] (Bot.) Shaped like a shallow cup; saucer-shaped; as, an acetabuliform calyx. Gray. [ 1913 Webster ]

‖n. [ L., a little saucer for vinegar, fr. acetum vinegar, fr. acere to be sour. ] [ 1913 Webster ]

1. (Rom. Antiq.) A vinegar cup; socket of the hip bone; a measure of about one eighth of a pint, etc. [ 1913 Webster ]

2. (Anat.) (a) The bony cup which receives the head of the thigh bone. (b) The cavity in which the leg of an insect is inserted at its articulation with the body. (c) A sucker of the sepia or cuttlefish and related animals. (d) The large posterior sucker of the leeches. (e) One of the lobes of the placenta in ruminating animals. [ 1913 Webster ]

n. [ Acetic + alcohol. ] (Chem.) A limpid, colorless, inflammable liquid from the slow oxidation of alcohol under the influence of platinum black. [ 1913 Webster ]

n. Acetic aldehyde. See Aldehyde. [ 1913 Webster ]

n. [ Acetyl + amide. ] (Chem.) A white crystalline solid, from ammonia by replacement of an equivalent of hydrogen by acetyl. [ 1913 Webster ]

n. 1. a white crystalline compound (HO.C6H4.NH.CO.CH3) used as an analgesic and also as an antipyretic. It has molecular weight 151.16. It is the active ingredient in the commercial analgesics Tylenol and Datril.
Syn. -- p-hydroxyacetanilide, p-acetamidophenol, N-acetyl-p-aminophenol, paracetamol, N-(4-hydroxyphenyl)acetamide It is sold under many trade names, and has been one of the most popular analgesics in the late 20th century. It is used in place of aspirin by people in whom aspirin causes undesirable side effects, such as stomach irritation or stomach bleeding. [ PJC ]

n. [ Acetyl + anilide. ] (Med., Chem.) An amide formed from aniline and an acetyl group (C6H5.NH.CO.CH3); it is a white crystalline compound used as an analgesic and also as an antipyretic. It has molecular weight 135.16. [ Written also acetanilid ] AS
Syn. -- phenylacetamide, N-phenylacetamide, antifebrin, antifebrine, acetylaminobenzene, acetylaniline [ 1913 Webster + WordNet 1.5 + AS ]

a. [ L. acetaria, n. pl., salad, fr. acetum vinegar, fr. acere to be sour. ] Used in salads; as, acetarious plants. [ 1913 Webster ]

n. [ L. acetaria salad plants. ] An acid pulp in certain fruits, as the pear. Grew. [ 1913 Webster ]

n. [ L. acetum vinegar, fr. acere to be sour. ] (Chem.) A salt formed by the union of acetic acid with a base or positive radical; as, acetate of lead, acetate of potash. [ 1913 Webster ]

a. Combined with acetic acid. [ 1913 Webster ]

a. [ L. acetum vinegar, fr. acere to be sour. ] (Chem.) (a) Of a pertaining to vinegar; producing vinegar; producing vinegar; as, acetic fermentation. (b) Pertaining to, containing, or derived from, acetyl, as acetic ether, acetic acid. The latter is the acid to which the sour taste of vinegar is due. [ 1913 Webster ]

n. The act of making acetous or sour; the process of converting, or of becoming converted, into vinegar. [ 1913 Webster ]

n. An apparatus for hastening acetification. Knight. [ 1913 Webster ]

v. t. [ imp. & p. p. Acetified p. pr. & vb. n. Acetifying ] [ L. acetum vinegar + -fly. ] To convert into acid or vinegar. [ 1913 Webster ]

v. i. To turn acid. Encyc. Dom. Econ. [ 1913 Webster ]

n. [ L. acetum vinegar + -meter: cf. F. acétimètre. ] An instrument for estimating the amount of acetic acid in vinegar or in any liquid containing acetic acid. [ 1913 Webster ]

n. The act or method of ascertaining the strength of vinegar, or the proportion of acetic acid contained in it. Ure. [ 1913 Webster ]

n. (Chem.) A combination of acetic acid with glycerin. Brande & C. [ 1913 Webster ]

v. i. To acetify. [ R. ] [ 1913 Webster ]

n. [ Acetic + -ol as in alcohol. ] (Chem.) 1. Methyl ketol; also, any of various homologues of the same. [ Webster 1913 Suppl. ]

1. [ cap. ] a trade name used at different times to represent different substances, as hydroxyacetone, acetylsalicylic acid, acetal, diethyl aldehyde, or cellulose acetate. MI11 [ PJC ]

n. Same as Acetimeter. Brande & C. [ 1913 Webster ]

‖ n. [ NL. See Acetone; Hæma-. ] (Med.) A morbid condition characterized by the presence of ketone bodies (including acetone, acetoacetic acid and beta-hydroxybutyric acid) in the blood, as in diabetes. [ Webster 1913 Suppl. + AS ]

n. [ See Acetic. ] (Chem.) A volatile liquid (CH3.CO.CH3); pyroacetic spirit; methyl ketone; -- obtained by fermentation, the distillation of certain acetates, or by the destructive distillation of citric acid, starch, sugar, or gum, with quicklime. It is commonly used as a solvent. [ 1913 Webster +PJC ]

☞ The term was once also applied to a number of bodies of similar constitution, more frequently called ketones. See Ketone. [ 1913 Webster +PJC ]

a. Of or pertaining to acetone; as, acetonic bodies. [ 1913 Webster ]

‖n. [ NL. See acetone; Urine. ] (Med.) Excess of ketone bodies (including acetone, acetoacetic acid and beta-hydroxybutyric acid) in the urine, as in starvation or diabetes
Syn. --ketonuria [ AS ]

n. (Med.) A white crystalline compound used as an analgesic and also as an antipyretic.
Syn. -- acetphenetidin, phenacetin [ WordNet 1.5 ]

n. [ Acetic + phenyl + one. ] (Chem.) A crystalline ketone, CH3.CO.C6H5, which may be obtained by the dry distillation of a mixture of the calcium salts of acetic and benzoic acids. It is used as a hypnotic under the name of hypnone. [ Webster 1913 Suppl. ]

a. Sour like vinegar; acetous. [ 1913 Webster ]

n. [ LL. acetositas. See Acetous. ] The quality of being acetous; sourness. [ 1913 Webster ]

a. [ L. acetum vinegar, fr. acere to be sour. ] 1. Having a sour taste; sour; acid. “An acetous spirit.” Boyle. “A liquid of an acetous kind.” Bp. Lowth. [ 1913 Webster ]

2. Causing, or connected with, acetification; as, acetous fermentation. [ 1913 Webster ]

Acetous acid, a name formerly given to vinegar, which is a dilute solution of acetic acid. [ 1913 Webster +PJC ]

n. 1. a white crystalline compound used as an analgesic and also as an antipyretic.
Syn. -- acetophenetidin, phenacetin [ WordNet 1.5 ]

n. [ L. acetum vinegar + Gr. &unr_; substance. See -yl. ] (Chem.) A complex, hypothetical radical, composed of two parts of carbon to three of hydrogen and one of oxygen. Its hydroxide is acetic acid. [ 1913 Webster ]

v. i. 1. (Chem.) receive substitution of an acetyl group; of chemical compounds
Syn. -- acetylize [ WordNet 1.5 ]

v. t. (Chem.) 1 introduce an acetyl group into a chemical compound
Syn. -- acetylize [ WordNet 1.5 ]

n. 1. a neurotransmitter released by the transmitting dendron at autononmous synapses and at neuromuscular junctions. It is a quaternary amine with an obligatory negative counterion. The nominal formula for the hydroxide form is C7H17NO3. Structural formula (CH3)3N(+)CH2CH2.O.CO.CH3.OH(-). Acetylcholine is the first recognized and best-studied of the neurotransmitters. At receptors it is recycled into choline by the action of acetylcholinesterase. Acetylcholinesterase inhibitors therefore function as nerve poisons. For biochemical studies it is prepared typically in the chloride or bromide forms. [ WordNet 1.5 +PJC ]

n. 1. an enzyme which exists in nerve cells and hydrolyses acetylcholine into choline and acetic acid. It is essential for neurotransmission at autonomous synapses and neuromuscular junctions, and its inhibition by acetylcholinesterase inhibitors can paralyze or kill an animal.
Syn. -- ACE [ PJC ]

n. (Chem.) A gaseous compound of carbon and hydrogen, in the proportion of two atoms of the former to two of the latter. It is a colorless gas, with a peculiar, unpleasant odor, and is produced for use as an illuminating gas in a number of ways, but chiefly by the action of water on calcium carbide. Its light is very brilliant. Watts. [ 1913 Webster ]

adj. 1. completely satisfactory.
Syn. -- copesetic, copesettic. [ WordNet 1.5 ]

You had to be a good judge of what a man was like, and the English was copacetic. John O'Hara

n. [ F. facette, dim. of face face. See Face. ] 1. A little face; a small, plane surface; as, the facets of a diamond. [ Written also facette. ] [ 1913 Webster ]

2. (Anat.) A smooth circumscribed surface; as, the articular facet of a bone. [ 1913 Webster ]

3. (Arch.) The narrow plane surface between flutings of a column. [ 1913 Webster ]

4. (Zool.) One of the numerous small eyes which make up the compound eyes of insects and crustaceans. [ 1913 Webster ]

v. t. [ imp. & p. p. Faceted; p. pr. & vb. n. Faceting. ] To cut facets or small faces upon; as, to facet a diamond. [ 1913 Webster ]

a. [ L. facetus elegant, fine, facetious; akin to facies. See Face, and cf. Facetious. ] Facetious; witty; humorous. [ Archaic ] “A facete discourse.” Jer. Taylor. [ 1913 Webster ]

“How to interpose” with a small, smart remark, sentiment facete, or unctuous anecdote. Prof. Wilson.

-- Fa*cete"ly, adv. -- Fa*cete"ness, n. [ 1913 Webster ]

a. Having facets. [ 1913 Webster ]

‖n. pl. [ L., fr. facetus. See Facete. ] Witty or humorous writings or saying; witticisms; merry conceits. [ 1913 Webster ]

a. [ Cf. F. facétieux. See Facetiæ. ] 1. Given to wit and good humor; merry; sportive; jocular; as, a facetious companion. [ 1913 Webster ]

2. Characterized by wit and pleasantry; exciting laughter; as, a facetious story or reply.

-- Fa*ce"tious*ly, adv. -- Fa*ce"tious*ness, n. [ 1913 Webster ]