Webster's Revised Unabridged Dictionary · 1913

Hexactinelline

Hexactinelline , adjective

[From New Latin Hexactinellina, from Greek "e`x six + a dim. of {not transcribed}, {not transcribed}, a ray.]

(Zoology) Belonging to the Hexactinellina, a group of sponges, having six-rayed siliceous spicules.