单词 pentacrinoid 释义 pentacrinoid, a. and n. Zool.|pntkrnd|[f. as prec. + -oid.]a. adj. Allied to or resembling the genus Pentacrinus or family Pentacrinid of crinoids (chiefly extinct, and found as fossils). b. n. = A pentacrinoid crinoid.1877Huxley A...