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keratosa |
1 definition found From Webster's Revised Unabridged Dictionary (1913) [web1913]: 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.