Keratosa

plural noun

Ker·​a·​tosa

ˌkerəˈtōsə,

-ōzə

: an order of Demospongiae comprising the horny sponges with a spongin skeleton and without spicules and including the commercially important family Spongiidae

Word History

Etymology

New Latin, from kerat- + Latin -osa (neuter plural of -osus -ous)

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