Skip to definition.
Get the FREE one-click dictionary software for Windows or the iPhone/iPad and Android apps


Noun: abacus (abacuses,abaci)  u'ba-kus or a-bu-kus [N. Amer], a-bu-kus [Brit]
  1. A tablet placed horizontally on top of the capital of a column as an aid in supporting the architrave
     
  2. A calculator that performs arithmetic functions by manually sliding counters on rods or in grooves

Derived forms: abaci, abacuses

Type of: calculating machine, calculator, tablet

Encyclopedia: Abacus

Nearest

Ab
ab
ab initio
ab ovo
aba
ABA transit number
abaca
abacinate
aback
abactinal
abacus
Abadan
Abaddon
abaft
abalone
abamp
abampere
abandon
abandoned
abandoned infant
abandoned person