Bay (badius), a very rich dark-reddish chestnut; badious.

Bi-, prefix, meaning twice.

Bib´ulous (bibulus, < bibere, drink), having the quality of absorbing or imbibing moisture.

Bicip´etal, Bicip´itous (biceps (bicipit-), two-headed, + al), in botany divided into two parts at the top or bottom.

Bi´fid (bifidus, forked, < bi, two, + findere, cleave, divide), cleft or divided into two parts.

Bifur´cated (bifurcus, two-forked), divided into two forks or branches as in the gills of certain Agarics.

Biloc´ular (bi, two, + loculus, a cell, < locus, a place), two-celled.

Biog´enous (bi, two, + genus, < gena, born), growing on living organisms.

Bise´riate, Bise´rial (bi, two, + seriate), arranged in two rows.

Bis´tre (fuligineus), a dark brown color somewhat more reddish than sepia, but much less so than burnt umber.