Definition from Wiktionary, the free dictionary
peeress (plural peeresses)
- A noblewoman married to a peer
- A woman holding a noble title in her own right.
1892, Sir Arthur Conan Doyle, “The Noble Bachelor”, in The Adventures of Sherlock Holmes, HTML edition, The Gutenberg Project, published 2011:
- … it is obvious that the Californian heiress is not the only gainer by an alliance which will enable her to make the easy and common transition from a Republican lady to a British peeress.