of or relating to a mother, especially during pregnancy or shortly after childbirth 母亲的;孕妇的;产妇的 maternal age. 育龄。 maternal care. 产妇护理。 ■[attrib.]related through the mother's side of the family 母系的,母亲一方的 my maternal grandfather. 我的外公。 ■denoting feelings associated with or typical of a mother; motherly 母性的;母亲般的 maternal instincts. 母性的本能。