'Ceratospongiae' definitions:

Definition of 'Ceratospongiae'

From: GCIDE

Ceratospongiae \Cer`a*to*spon"gi*[ae]\, prop. n. pl. [NL., fr. Gr. ke`ras, ke`ratos horn + ? sponge.] (Zool.) An order of sponges in which the skeleton consists of horny fibers. It includes all the commercial sponges. [1913 Webster]