Part 3

Ac¶erÏate, a. Acerose; needleÏshaped.

AÏcerb¶ (#), a. [L. acerbus, fr. acer sharp: cf. F. acerbe. See Acrid.] Sour, bitter, and harsh to the taste, as unripe fruit; sharp and harsh.

AÏcerb¶ate (#), v. t. [L. acerbatus, p. p. of acerbare, fr. acerbus.] To sour; to imbitter; to irritate.

AÏcerb¶ic (#), a. Sour or severe.

AÏcerb¶iÏtude (#), n. [L. acerbitudo, fr. acerbus.] Sourness and harshness. [Obs.] Bailey. AÏcerb¶iÏty (#), n. [F. acerbit‚, 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. AÏcer¶ic (#), a. [L. acer maple.] Pertaining to, or obtained from, the maple; as, aceric acid. Ure. Ac¶erÏose· (#), a. [(a) L. acerosus chaffy, fr. acus, gen. aceris, chaff; (b) as if fr. L. acus needle: cf. F. ac‚reux.] (Bot.) (a) Having the nature of chaff; chaffy. (b) NeedleÐshaped, having a sharp, rigid point, as the leaf of the pine.

Ac¶erÏous (#), a. Same as Acerose.

Ac¶erÏous, a. [Gr. <a> priv. + <keras> a horn.] (Zo”l.) (a) Destitute of tentacles, as certain mollusks. (b) Without antenn‘, as some insects.

AÏcer¶val (#), a. [L. acervalis, fr. acervus heap.] Pertaining to a heap. [Obs.]

AÏcer¶vate (#), v. t. [L. acervatus, p. p. of acervare to heap up, fr. acervus heap.] To heap up. [Obs.] AÏcer¶vate (#), a. Heaped, or growing in heaps, or closely compacted clusters.

Ac·erÏva¶tion (#), n. [L. acervatio.] A heaping up; accumulation. [R.] Johnson. AÏcer¶vaÏtive (#), a. Heaped up; tending to heap up.

AÏcer¶vose (#), a. Full of heaps. [R.] Bailey.

AÏcer¶vuÏline (#), a. Resembling little heaps.

AÏces¶cence (#), AÏces¶cenÏcy (#), } n. [Cf. F. acescence. See Acescent.] The quality of being acescent; the process of acetous fermentation; a moderate degree of sourness. Johnson. AÏces¶cent (#), a. [L. acescens, Ïentis, 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.

AÏces¶cent, n. A substance liable to become sour.

Ac¶eÏtaÏble (#), n. An acetabulum; or about one eighth of a pint. [Obs.] Holland. Ac·eÏtab¶uÏlar (#), a. CupÏshaped; saucerÐshaped; acetabuliform. Ø Ac·eÏtab·uÏlif¶eÏra (#), n. pl. [NL. See Acetabuliferous.] (Zo”l.) The division of Cephalopoda in which the arms are furnished with cupÐshaped suckers, as the cuttlefishes, squids, and octopus; the Dibranchiata. See Cephalopoda. Ac·eÏtab·uÏlif¶erÏous (#), a. [L. acetablum a little cup + Ïferous.] Furnished with fleshy cups for adhering to bodies, as cuttlefish, etc. Ac·eÏtab¶uÏliÏform (#), a. [L. acetabulum + Ïform.] (Bot.) Shaped like a shallow; saucerÐshaped; as, an acetabuliform calyx. Gray. Ø Ac·eÏtab¶uÏlum (#), 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¶eÏtal (#), n. [Aceic + alcohol.] (Chem.) A limpid, colorless, inflammable liquid from the slow oxidation of alcohol under the influence of platinum black.

Ac·etÏal¶deÏhyde (#), n. Acetic aldehyde. See Aldehyde.

Ac·etÏam¶ide (#), n. [Acetyl + amide.] (Chem.) A white crystalline solid, from ammonia by replacement of an equivalent of hydrogen by acetyl.

Ac·etÏan¶iÏlide (#), n. [Acetyl + anilide.] (Med.) A compound of aniline with acetyl, used to allay fever or pain; Ð called also antifebrine.

Ac·eÏta¶riÏous (#), a. [L. acetaria, n. pl., salad, fr. acetum vinegar, fr. acere to be sour.] Used in salads; as, acetarious plants.

p. 15

Ac¶eÏtaÏry (#), n. [L. acetaria salad plants.] An acid pulp in certain fruits, as the pear. Grew. Ac¶eÏtate (#), 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¶eÏta·ted (#), a. Combined with acetic acid.

AÏce¶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.

AÏcet·iÏfiÏca¶tion (#), n. The act of making acetous or sour; the process of converting, or of becoming converted, into vinegar.

AÏcet¶iÏfi·er (#), n. An apparatus for hastening acetification. Knight.

AÏcet¶iÏfy (#), v. t. [imp. & p. p. Acetified (#); p. pr. & vb. n. Acetifying (#).] [L. acetum vinegar + Ïfly.] To convert into acid or vinegar.

AÏcet¶iÏfy, v. i. To turn acid. Encyc. Dom. Econ.