Bel-em´nites [Gr. belemnon, dart.] A belemnitoid cuttlefish.
Bi´o-phores [Gr. bios, life; phero, bear.] Biological units of hereditary mass.
Bi´pes [Lat. bis, twice; pes, foot.]
Blas´tid [Gr. blastos, sprout.]
Blas-to-ge-net´ic [Gr. blastos, a germ; genesis, generation.] Originating in the germ cells.
Blas´tu-la [Gr. blastos, sprout.] A stage in the growth of the embryo; a hollow sphere of one layer of cells enclosing a segmentation-cavity.
Brach-i-op´o-da [Lat. brachium, arm; Gr. pous, foot.] Molluscoid animals with bivalve shells, one of which is dorsal and the other ventral; also with brachial appendages coming from the sides of the mouth. Lamp shells.
Brach´i-o-pod [Vid. Brachiopoda.] Lamp shell.
Bry-oph´y-ta [Gr. bryon, moss; phyton, plant.] A division of the vegetable kingdom consisting of liverworts and mosses.
Bry-o-zo´a [Gr. bryon, moss; zoon, animal.] Moss animals.