therian: Meaning and Definition of

the•ri•an

Pronunciation: (thēr'ē-un), [key]
— adj.
  1. (in some classification systems) belonging or pertaining to the group Theria, comprising the marsupial and placental mammals and their extinct ancestors.
—n.
  1. a therian animal.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.