单词 monotreme 释义 monotreme, n. and a. Zool.|mntrim|[f. Gr. - mono- + ῆ-: see Monotremata. Cf. F. monotrme.]A. n. A member of the Monotremata.1835Kirby Hab. & Inst. Anim. II. xxiv. 483 This Subclass is divided into two Orders, Monotremes, and Marsupia...