a.

1. 母親的；母性的
   She showed her daughter's picture with maternal pride.

   她懷著作為母親的自豪感拿出女兒的照片給人看。

2. 母親一方的；母系的
   maternal grandparents

   外祖父母

3. 母體遺傳的
   maternal chromosomes

   母體遺傳的染色體

adj.

1. relating to a mother.
   ▸associated with or typical of a mother; motherly.
2. related through the mother's side of the family:
   maternal grandparents.