bibaɪ(adj.; n.)(pl.)

1. bis, bi's.Slang. bisexual.

   Category: Common Vocabulary, Status (usage)

Origin of bi:

1955–60; by shortening

Bi^*

1. bismuth.

   Category: Chemistry

^* Chem. Symbol..

bi-^*

1. a combining form meaning “twice,”“two”bicarbonate.

   Category: Affix

^* Usage: Most words referring to periods of time and prefixed by bi- are potentially ambiguous. Since bi - can be taken to mean either “twice each” or “every two,” a word like biweekly can be understood as “twice each week” or “every two weeks.” Confusion is often avoided by using the prefix semi- meaning “twice each” (semiweekly; semimonthly; semiannual) or by using the appropriate phrases: twice a week; twice each month; every two months; every two years.

Origin of bi-:

< L; cf. twi -