'Patroness' definitions:

Definition of 'patroness'

(from WordNet)
noun
A woman who is a patron or the wife of a patron [syn: patroness, patronne]

Definition of 'Patroness'

From: GCIDE
  • Patroness \Pa"tron*ess\, n. [Cf. F. patronnesse.] A female patron or helper. --Spenser. [1913 Webster]
  • Night, best patroness of grief. --Milton. [1913 Webster]