单词 metazoan 释义 metazoan, a. and n.|mtzn|[f. prec. + -an.]a. adj. Belonging to or characteristic of the Metazoa. b. n. One of the Metazoa.1884Hyatt in Proc. Boston Soc. Nat. Hist. XXIII. 140 The adult ascon, the lowest Metazoan.1886Geddes in Encycl. B...