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The Collaborative International Dictionary
Hexactinelline

Hexactinelline \Hex*ac`ti*nel"line\, a. [From NL. Hexactinellin[ae], fr. Gr. "e`x six + a dim. of ?, ?, a ray.] (Zo["o]l.) Belonging to the Hexactinellin[ae], a group of sponges, having six-rayed siliceous spicules.