binary digit

either the digit 0 or the digit 1, as used in binary notation 二进制数字（0或1, 用於二进制记数法）.

billboard, billet, billet-doux, billfold, billhook, billiard-, billiards, billion, billow, billowy, billposter (also billsticker), billy, billy-goat, billy-oh (also billy-o), biltong, bimetallic, bimetallism, bimonthly, bin, binary, binary notation system, binary star, bind, binder, bindery, binding, bindweed, bine, binge, bingo, binnacle, binoculars, binomial, biochemical, biochemist, biochemistry, biodegradable, biographer, biographic, -ical, biography,