Definitions for: Baroness

[n] a noblewoman who holds the rank of baron or who is the wife or widow of a baron

Webster (1913) Definition: Bar"on*ess, n.
A baron's wife; also, a lady who holds the baronial title in
her own right; as, the Baroness Burdett-Coutts.

See Also: Lady, noblewoman, peeress