What is "paxillus"

Paxillus \Pax*il"lus\, n.; pl. Paxilli. [L., a peg.] (Zo["o]l.) 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.

n. (context zoology English) A kind of pillar-like spine with a flattened summit covered with minute spinules or granules, covering the surface of certain starfishes.

Paxillus is a genus of mushrooms of which most are known to be poisonous or inedible. Species include Paxillus involutus and Paxillus vernalis. Two former species— Tapinella panuoides and Tapinella atrotomentosa—have now been transferred to the related genus Tapinella in the family Tapinellaceae

Paxillus means small stake.