monotreme

n. 单孔目动物 [医] 单孔类

发音

其它 /ˈmɒnətɹiːm/

词形变化

monotremes 复数 monotremes

释义与例句

n.
  1. 1.

    Any of the order Monotremata of mammals that lay eggs and have single orifices for urogenital and digestive functions (cloaca); an echidna, platypus or one of their extinct relatives.

    单孔目动物

    生物 动物学
adj.
  1. 1.

    Having a single trema, or aperture.

    生物 化学

词汇关系

名词

上位词 1

prototherian

下位词 6

platypus echidna anteater spiny anteater duckbill duck-billed platypus

词源

From mono- + -treme.

来源：wiktionary