adj. 1. Relating to or characteristic of a mother or motherhood; motherly: maternal instinct. 2. Inherited from one's mother: a maternal trait. 3. Related through one's mother: my maternal uncle. [Middle English, from Old French maternel, from Medieval Latin māternālis, from Latin māternus, from māter, mother; see māter- in the Appendix of Indo-European roots.] ma·ternal·ism n. ma·ternal·ly adv. |
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