Dreye權威釋義|stepmother

n.

繼母，後母[C]
Father eventually married her and she became my stepmother.
父親終於和她結了婚，於是她成了我的繼母。

同義參見:

以上來源於：《英漢大辭典》

n.

a woman who is married to one's father after the divorce of one's parents or the death of one's mother.

以上來源於：《簡明牛津英語詞典》