Hȳp'o-gēne, a.

a. [Gr. ὑπό, under, and γενεῖν, γίγνεσθαι, to produce, grow.] (Geol.) Formed or crystallized at depths beneath the earth’s surface;—applied to granite and some other rocks, by those (as Lyell) who suppose that the crystallization took place beneath a great thickness of other rocks.