Ac"er*ate (&?;), n. [See Aceric.] (Chem.) A combination of aceric acid with a salifiable base.
Ac"er*ate, a. Acerose; needle- shaped.
A*cerb" (&?;), a. [L. acerbus, fr. acer sharp: cf. F. acerbe. See Acrid.] Sour, bitter, and harsh to the taste, as unripe fruit; sharp and harsh.
A*cerb"ate (&?;), v. t. [L. acerbatus, p. p. of acerbare, fr. acerbus.] To sour; to imbitter; to irritate.
A*cerb"ic (&?;), a. Sour or severe.
A*cerb"i*tude (&?;), n. [L. acerbitudo, fr. acerbus.] Sourness and harshness. [Obs.] Bailey.
A*cerb"i*ty (&?;), n. [F. acerbité, L. acerbitas, fr. acerbus. See Acerb.] 1. Sourness of taste, with bitterness and astringency, like that of unripe fruit.
2. Harshness, bitterness, or severity; as, acerbity of temper, of language, of pain. Barrow.
A*cer"ic (&?;), a. [L. acer maple.] Pertaining to, or obtained from, the maple; as, aceric acid. Ure.
Ac"er*ose` (&?;), a. [(a) L. acerosus chaffy, fr. acus, gen. aceris, chaff; (b) as if fr. L. acus needle: cf. F. acéreux.] (Bot.) (a) Having the nature of chaff; chaffy. (b) Needle-shaped, having a sharp, rigid point, as the leaf of the pine.
Ac"er*ous (&?;), a. Same as Acerose.
Ac"er*ous, a. [Gr. α priv. + ke`ras a horn.] (Zoöl.) (a) Destitute of tentacles, as certain mollusks. (b) Without antennæ, as some insects.
A*cer"val (&?;), a. [L. acervalis, fr. acervus heap.] Pertaining to a heap. [Obs.]
A*cer"vate (&?;), v. t. [L. acervatus, p. p. of acervare to heap up, fr. acervus heap.] To heap up. [Obs.]
A*cer"vate (&?;), a. Heaped, or growing in heaps, or closely compacted clusters.
Ac`er*va"tion (&?;), n. [L. acervatio.] A heaping up; accumulation. [R.] Johnson.
A*cer"va*tive (&?;), a. Heaped up; tending to heap up.
A*cer"vose (&?;), a. Full of heaps. [R.] Bailey.
A*cer"vu*line (&?;), a. Resembling little heaps.
{ A*ces"cence (&?;), A*ces"cen*cy (&?;), } n. [Cf. F. acescence. See Acescent.] The quality of being acescent; the process of acetous fermentation; a moderate degree of sourness. Johnson.
A*ces"cent (&?;), a. [L. acescens, -entis, p. pr. of acescere to turn sour; inchoative of acere to be sour: cf. F. acescent. See Acid.] Turning sour; readily becoming tart or acid; slightly sour. Faraday.
A*ces"cent, n. A substance liable to become sour.
Ac"e*ta*ble (&?;), n. An acetabulum; or about one eighth of a pint. [Obs.] Holland.
Ac`e*tab"u*lar (&?;), a. Cup-shaped; saucer-shaped; acetabuliform.
||Ac`e*tab`u*lif"e*ra (&?;), n. pl. [NL. See Acetabuliferous.] (Zoöl.) The division of Cephalopoda in which the arms are furnished with cup-shaped suckers, as the cuttlefishes, squids, and octopus; the Dibranchiata. See Cephalopoda.
Ac`e*tab`u*lif"er*ous (&?;), a. [L. acetablum a little cup + -ferous.] Furnished with fleshy cups for adhering to bodies, as cuttlefish, etc.
Ac`e*tab"u*li*form (&?;), a. [L. acetabulum + -form.] (Bot.) Shaped like a shallow cup; saucer-shaped; as, an acetabuliform calyx. Gray.
||Ac`e*tab"u*lum (&?;), n. [L., a little saucer for vinegar, fr. acetum vinegar, fr. acere to be sour.] 1. (Rom. Antiq.) A vinegar cup; socket of the hip bone; a measure of about one eighth of a pint, etc.
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.
Ac"e*tal (&?;), n. [Acetic + alcohol.] (Chem.) A limpid, colorless, inflammable liquid from the slow oxidation of alcohol under the influence of platinum black.
Ac`et*al"de*hyde (&?;), n. Acetic aldehyde. See Aldehyde.
Ac`et*am"ide (&?;), n. [Acetyl + amide.] (Chem.) A white crystalline solid, from ammonia by replacement of an equivalent of hydrogen by acetyl.
Ac`et*an"i*lide (&?;), n. [Acetyl + anilide.] (Med.) A compound of aniline with acetyl, used to allay fever or pain; -- called also antifebrine.
Ac`e*ta"ri*ous (&?;), a. [L. acetaria, n. pl., salad, fr. acetum vinegar, fr. acere to be sour.] Used in salads; as, acetarious plants.
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Ac"e*ta*ry (&?;), n. [L. acetaria salad plants.] An acid pulp in certain fruits, as the pear. Grew.
Ac"e*tate (&?;), 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.
Ac"e*ta`ted (&?;), a. Combined with acetic acid.
A*ce"tic (#; 277), 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.
A*cet`i*fi*ca"tion (&?;), n. The act of making acetous or sour; the process of converting, or of becoming converted, into vinegar.
A*cet"i*fi`er (&?;), n. An apparatus for hastening acetification. Knight.
A*cet"i*fy (&?;), v. t. [imp. & p. p. Acetified (&?;); p. pr. & vb. n. Acetifying (&?;).] [L. acetum vinegar + -fly.] To convert into acid or vinegar.
A*cet"i*fy, v. i. To turn acid. Encyc. Dom. Econ.
Ac`e*tim"e*ter (&?;), 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.
Ac`e*tim"e*try (&?;), n. The act or method of ascertaining the strength of vinegar, or the proportion of acetic acid contained in it. Ure.
Ac"e*tin (&?;), n. (Chem.) A combination of acetic acid with glycerin. Brande & C.