foremother          
noun uk/ˈfɔːˌmʌð.ər/ us/ˈfɔːrˌmʌð.ɚ/
 [ usually plural ]先辈祖母 
someone's female relative who lived a long time ago
  If one of our forefathers and foremothers wasn't a successful reproducer we wouldn't here. 假如我们的哪位祖爷爷祖奶奶不能生育的话,现在就不会有我们了。 
 She followed her foremothers as an attendant at a Connecticut correctional institution for women. 她继承了几位先辈祖母的职业,在康乃狄克州的一家女子监狱任狱卒。 
  [ C ]女先驱;女前辈 
a woman who started something or played an important part in the way it developed 
  She was a foremother of feminist theology. 她是女权主义神学的先驱。 
 All these women count Hurston as a literary foremother. 所有这些妇女都把赫斯顿视为文学上的前辈。 
 - More examples
 - The right to vote was won by our forefathers and foremothers who fought for it.
 - We have inherited a beautiful thing from our foremothers: public education.
 - She received eight local Emmys and three Golden Mikes and was named a "foremother" by the National Research Center for Women and Families.
 - Feminist foremother Gloria Steinem took to the New York Times op-ed page.