keratosa

Keratosa

Ker`a*to"sa\, n. pl. [NL., fr. Gr. ke`ras, -atos, a horn.] (Zo["o]l.) An order of sponges having a skeleton composed of hornlike fibers. It includes the commercial sponges.
Webster's Revised Unabridged Dictionary, © 1996, 1998 MICRA, Inc.
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