Hal`i*chon"dri*[ae]\, n. pl. [NL., fr. Gr. ?, ?, sea + ? cartilage.] (Zo["o]l.) An order of sponges, having simple siliceous spicules and keratose fibers; -- called also Keratosilicoidea.
Webster's Revised Unabridged Dictionary, © 1996, 1998 MICRA, Inc.
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