| 释义 |
pen·tac·ri·nus
\-_nəs\ noun
Usage: capitalized
Etymology: New Latin, from penta- (from Greek) + -crinus
: a genus (the type of the family Pentacrinidae) comprising large stalked Jurassic crinoids having a small bowl-shaped calyx, strong numerously branched and pinnulate arms, and a pentangular stalk |