marsupial rat is a noun meaning "any of numerous small sharp-nosed insectivorous marsupials superficially resembling mice or rats". It carries one recorded sense.
any of numerous small sharp-nosed insectivorous marsupials superficially resembling mice or rats
Definitions, synonyms and semantic relations for marsupial rat come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.