n. (in zoology) an extinct order of monotreme mammals, including the genus Ornithorhynchus, characterized by a beak and a venom secreting gland in the male. as in strong fondness

Word Combinations

Example:The study of raoellid mammals helps us understand the evolutionary history of Australian monotremes.

Definition:A member of the extinct order of monotreme mammals known for their unique physical characteristics.

From raoellid mammal

Example:Several fossils of the genus Plsropheus were found, indicating they were part of the intermediate stage in raoellid evolution.

Definition:A genus within the extinct order of raoellids that shares some characteristics with the modern platypus.

From plsropheus