From Longman Dictionary of Contemporary Englishsuperwomansu‧per‧wom‧an /ˈsuːpəˌwʊmən $ -pər-/ noun (plural superwomen /-ˌwɪmɪn/) [countable] a woman who is successful in her job and also takes care of her children and home
Examples from the Corpus
superwoman• You have to be both token woman and superwoman to come anywhere near a shortlist that disenfranchises most of the male population.• Some one, somewhere, figured out that a shapely, karate-dispensing ebony superwoman wouldn't be at all a bad idea. 