Belowground in a sentence as an adjective

In grasses, if the aboveground leaves get shortened/killed, from fire or mowing, the belowground roots die back, then both regrow in a similar manner.

Belowground definitions

adjective

under the level of the ground; "belowground storage areas"; "underground caverns"

See also: underground

adjective

underneath the ground; "most of his friends are now belowground"