Etymology: < Greek ἕξ six + Latin radiatus rayed, radiateadj. and n.
= hexiradiateadj.
ΚΠ
1883 W. S. Kent in A. J. Adderley Fisheries Bahamas 37 The glass-rope, birds'-nest, and hat sponges share..the circumstance that the silicious spicules of which their skeletons are composed belong..to what is known as the hex-radiate type.
This entry has not yet been fully updated (first published 1933; most recently modified version published online March 2019).