アバカス

noun

abacus

A calculating tool with beads on rods. In Japanese, そろばん is the standard native term; アバカス is a loanword used mainly in international or technical contexts.

See also: そろばん

• 子こ供どもの頃ころ、アバカスで計けい算さんの練れん習しゅうをした。

  When I was a child, I practiced arithmetic with an abacus.