Meaning of ABACUS in English

ABACUS

n. (pl. abacuses) 1 an oblong frame with rows of wires or grooves along which beads are slid, used for calculating. 2 Archit. the flat slab on top of a capital, supporting the architrave.

[ L f. Gk abax abakos slab, drawing-board, f. Heb. ' abak dust ]

Concise Oxford English dictionary.      Краткий оксфордский словарь английского языка.