Ger"mi*nal , a.
(Biol.) Of or
pertaining to the germ, or germ
cells, as distinguished
from the somatic cells.
||Ger`mi*nal" (?), n.
[F. See Germ .]
The seventh month of the French
republican calendar
[1792 -- 1806]. It began March
21 and ended April 19. See VendÉmiaire.
Ger"mi*nal (?), a. [See Germ.]
Pertaining or belonging
to a germ; as, the germinal vesicle.
Germinal layers (Biol.), the two layers of cells, the ectoblast and entoblast, which form respectively the outer covering and inner wall of
the gastrula. A third layer
of cells, the mesoblast, which is formed later and lies between these two, is sometimes included.
-- Germinal membrane. (Biol.) Same as Blastoderm. -- Germinal spot
(Biol.), the nucleolus of the ovum. -- Germinal vesicle,
(Biol.) , the nucleus of the ovum of
animals.