from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A kind of pillar-like spine with a flattened summit covered with minute spinules or granules, covering the surface of certain starfishes.
from the GNU version of the Collaborative International Dictionary of English
- n. 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.
Latin paxillus ("peg") (Wiktionary)