Definitions

1. noun

A genus of cave-dwelling, blind, troglobitic crustaceans, specifically a type of isopod.

“The biologist studied the unique adaptations of the semeostoma species found in the cave system.”

2. noun

A subfamily of the same order of crustaceans as the previous definition.

“The semeostoma subfamily is distinct from other crustaceans due to its distinctive features.”