hy|po|ge|al

hy|po|ge|al «_HY puh JEE uhl, _HIHP uh-», adjective.

1. underground; subterranean.

2. Botany. hypogeous.

╂[< Latin hypogēus < Greek hypógeios (see etym. under hypogeum (Cf. ↑hypogeum)) + English -al¹]