bi|na|ry

bi|na|ry «BY nuhr ee», adjective, noun, plural -ries.

–adj.

consisting of two; involving two: »

a binary number.

–n.

1. a set of two things; pair.

2. = binary star. (Cf. ↑binary star)

╂[< Late Latin bīnārius < Latin bīnī two at a time]