the world > animals > invertebrates > subkingdom Parazoa > phylum Porifera > [noun] > member of > parts of > sponge spicule > having rays > having six rays (4)
(a) adj. having six rays, as a sponge-spicule; (b) n. a sponge-spicule having six rays.
A six-rayed sponge-spicule in which the rays are abruptly pointed.
a six-rayed sponge-spicule having a knob at the end of each ray.