Bi- (or Bis), in compound words, twice; as
Biarticulate, twice-jointed, or two-jointed; separating into two pieces.
Biauriculate, having two ears, as the leaf in fig. [126].
Bicallose, having two callosities or harder spots.
Bicarinate, two-keeled.
Bicipital (Biceps), two-headed; dividing into two parts.
Biconjugate, twice paired, as when a petiole forks twice.
Bidentate, having two teeth (not twice or doubly dentate).
Biennial, of two years' continuance; springing from the seed one season, flowering and dying the next, [38].
Bifarious, two-ranked; arranged in two rows.