Paxillus \Pax*il"lus\, n.; pl. {Paxilli}. [L., a peg.] (Zool.)
One of a peculiar kind of spines covering the surface of
certain starfishes. They are pillarlike, with a flattened
summit which is covered with minute spinules or granules. See
Illustration in Appendix.
[1913 Webster]