Acetify, as-et′i-fī, v.t. or v.i. to turn into vinegar.—n. Acetificā′tion. [L. acetum, vinegar, and facĕre, to make.]
Acetopathy, as-et-op′a-thi, n. the treating of ailments by the external application of dilute acetic acid. [L. acētum, acid, and Gr. pathos, feeling.]
Acetylene, a-set′i-lēn, n. a powerful illuminant gas (C2H2) produced commercially from carbide of calcium by means of water.
Achæan. See Achean.
Acharnement, ä-shärn′ment (sometimes nasalised as in French), n. thirst for blood, ferocity. [Fr. acharner, refl. sacharner, to thirst for blood.]
Achates, a-kāts′, n.pl. (Spens.). Same as Cates.
Achates, ä-kā′tes, n. trusty comrade, from the 'fidus Achates' of Virgil's Æneid—the constant companion of Æneas in his wanderings after the fall of Troy.
Ache, āk, n. a continued pain.—v.i. to be in continued pain:—pr.p. āch′ing; pa.p. āched.—n. Ach′ing, continued pain or distress. [The verb is properly ake, the noun ache, as in speak and speech. The A.S. noun æce is from the verb ac-an, to ache.]
Achenium, a-kē′ni-um, n. (bot.) a small hard one-seeded fruit, which does not open when ripe, as in the buttercup.—Also Achene′. [From Gr. a, neg., and chainein, to gape.]
Acheron, ak′kėr-on, n. death, hell—from the name of that river in the infernal regions of classical mythology.—adj. Acheron′tic, deadly.