Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
gĕnĕrātrix, īcis, f. [generator], she that generates or brings forth: (Aegyptus) hominum aliorumque animalium perfecunda generatrix, Mel. 1, 9, 1; Ambros. de Noë, 28, 106.