GERMINAL a.
ers 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 nucleolu…
GOLD n.
eaf, gold beaten into a film of extreme thinness, and used for gilding, etc. It is much thinner than gold foil. -- Gold lode (Mining), a gold vein. -- Gold mine, a place where gold is obtained by mining operations, as distinguished from diggings, where it is extracted by washing. Cf. Gold diggings (above). -- Gold n…