- belonging or pertaining to the group Metatheria, comprising the marsupial mammals.
- a metatherian animal.
Origin of metatherian
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- of, relating to, or belonging to the Metatheria, a subclass of mammals comprising the marsupials
- any metatherian mammal; a marsupial
C19: from New Latin, from meta- + Greek thērion animal