twofold, double / ambiguous / (botany) In two rows (on opposite sides of a branch etc.)

(botany) Bearing flowers or fruit twice each year

plural of biface

Of or pertaining to two factors.

In a bifarious manner.

bifid

A pharmaceutical drug used to treat senile dementia and glaucoma.

(informal) One who hits or punches; a fighter. / (informal, cricket) An attacking batsman.

(vulgar, slang) An unattractive woman.

Any bacterium of the genus Bifidobacterium