- belonging or pertaining to the group Eutheria, comprising the placental mammals.
- a eutherian animal.
Origin of eutherian
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for eutherian
The number of teeth is 42—nearly the typical Eutherian number.
The dentition is the complete Eutherian dentition of forty-four teeth.
The early Eutherian stock consisted of small mammals with small heads and slender, long tails.
The first was largely ineffective, the second has produced all the Eutherian orders of to-day.
According to his showing, therefore, the preponderance of marsupial features are Eutherian.
- of, relating to, or belonging to the Eutheria, a subclass of mammals all of which have a placenta and reach an advanced state of development before birth. The group includes all mammals except monotremes and marsupials
- any eutherian mammal
C19: from New Latin Euthēria, from Greek eu- + thēria, plural of thērion beast
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