Binate, in couples, two together. Bipartite, the Latin form of two-parted.
Binodal, of two nodes.
Binomial, of two words, as the name of genus and species taken together, [180].
Bipalmate, twice palmately divided.
Biparous, bearing two.
Bipinnate (leaf), twice pinnate, [58]. Bipinnatifid, twice pinnatifid, [57].
Bipinnatisect, twice pinnately divided.
Biplicate, twice folded together.
Biserial, or Biseriate, occupying two rows, one within the other.
Biserrate, doubly serrate, as when the teeth of a leaf are themselves serrate.