2. pl. (Zoöl.) The lowest group of Vertebrata, including the amphioxus, in which no skull exists.
(A*cra"ni*al) a. Wanting a skull.
(A*crase", A*craze") v. t. [Pref. a- + crase; or cf. F. écraser to crush. See Crase, Craze.]
1. To craze. [Obs.] Grafton.
2. To impair; to destroy. [Obs.] Hacket.
(||A*cra"si*a Ac"ra*sy) n. akrasia.]> Excess; intemperance. [Obs. except in Med.] Farindon.
(||A*cras"pe*da) n. pl. [NL., fr. Gr. 'a priv. + border.] (Zoöl.) A group of acalephs, including
most of the larger jellyfishes; the Discophora.
(A"cre) n. [OE. aker, AS. æcer; akin to OS. accar, OHG. achar, Ger. acker, Icel. akr, Sw. åker,
Dan. ager, Goth. akrs, L. ager, Gr. Skr. ajra. &radic2, 206.]
1. Any field of arable or pasture land. [Obs.]
2. A piece of land, containing 160 square rods, or 4,840 square yards, or 43,560 square feet. This is
the English statute acre. That of the United States is the same. The Scotch acre was about 1.26 of the
English, and the Irish 1.62 of the English.
The acre was limited to its present definite quantity by statutes of Edward I., Edward III., and Henry
Broad acres, many acres, much landed estate. [Rhetorical] God's acre, God's field; the churchyard.
I like that ancient Saxon phrase, which calls
The burial ground, God's acre.
(A"cre*a*ble) a. Of an acre; per acre; as, the acreable produce.
(A"cre*age) n. Acres collectively; as, the acreage of a farm or a country.
(A"cred) a. Possessing acres or landed property; used in composition; as, large-acred men.
(Ac"rid) a. [L. acer sharp; prob. assimilated in form to acid. See Eager.]
1. Sharp and harsh, or bitter and not, to the taste; pungent; as, acrid salts.
2. Causing heat and irritation; corrosive; as, acrid secretions.
3. Caustic; bitter; bitterly irritating; as, acrid temper, mind, writing.
Acrid poison, a poison which irritates, corrodes, or burns the parts to which it is applied.
(A*crid"i*ty Ac"rid*ness) n. The quality of being acrid or pungent; irritant bitterness; acrimony; as,
the acridity of a plant, of a speech.
(Ac"rid*ly) adv. In an acid manner.
(Ac"ri*mo"ni*ous) a. [Cf. LL. acrimonious, F. acrimonieux.]
1. Acrid; corrosive; as, acrimonious gall. [Archaic] Harvey.
2. Caustic; bitter-tempered' sarcastic; as, acrimonious dispute, language, temper.