(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
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
(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.
(Ac"e*ta*ry) n. [L. acetaria salad plants.] An acid pulp in certain fruits, as the pear. Grew.