paxillus

1 definition found

paxillus - Collaborative International Dictionary of English v.0.48 :

  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]