Ab*ac"tor (-tr), n. [L., fr. abigere to drive away; ab + agere to drive.] (Law) One who steals and drives away cattle or beasts by herds or droves. [Obs.]
||A*bac"u*lus (b*k"*ls), n.; pl. Abaculi (-l). [L., dim. of abacus.] (Arch.) A small tile of glass, marble, or other substance, of various colors, used in making ornamental patterns in mosaic pavements. Fairholt.
Ab"a*cus (b"*ks), n.; E. pl. Abacuses ; L. pl. Abaci (-s). [L. abacus, abax, Gr. 'a`bax] 1. A table or tray strewn with sand, anciently used for drawing, calculating, etc. [Obs.]
2. A calculating table or frame; an instrument for performing arithmetical calculations by balls sliding on wires, or counters in grooves, the lowest line representing units, the second line, tens, etc. It is still employed in China.
3. (Arch.) (a) The uppermost member or division of the capital of a column, immediately under the architrave. See Column. (b) A tablet, panel, or compartment in ornamented or mosaic work.
4. A board, tray, or table, divided into perforated compartments, for holding cups, bottles, or the like; a kind of cupboard, buffet, or sideboard.
Abacus harmonicus (Mus.), an ancient diagram showing the structure and disposition of the keys of an instrument. Crabb.
Ab"a*da (b"*d), n. [Pg., the female rhinoceros.] The rhinoceros. [Obs.] Purchas.
A*bad"don (*bd"dn), n. [Heb. baddn destruction, abyss, fr. bad to be lost, to perish.] 1. The destroyer, or angel of the bottomless pit; -- the same as Apollyon and Asmodeus.