MeSH definition : An order of egg-laying mammals that includes the PLATYPUS and ECHIDNA.; An order of egg-laying mammals that includes the PLATYPUS and TACHYGLOSSIDAE.;
MeSH synonym : monotrematas;
Wikipedia automatic translation : Monotreme;
MeSH annotation : GEN or unspecified; prefer ECHIDNA & PLATYPUS; IM; qualif permitted;
Wikipedia link : https://en.wikipedia.org/wiki/Monotreme;