a. [f. as prec. + -OUS. Cf. F. bifère.] a. Bot. Bearing fruit or flowers twice in a year. b. Crystallog. (see quot.)
1656. in Blount, Glossogr.
a. 1682. Sir T. Browne, Tracts, 70. Some are biferous and triferous which bear twice or thrice in the year.
1816. R. Jameson, Char. Min. (1817), 220. Biferous (bifère), when every angle and edge suffers two decrements. Example, Biferous grey copper-ore.