Definition of "soubrette"

At present I have only a soubrette's part, with an apron and pockets, and a ballad; but, as I said before, luck's all in this world, and I have every requisite for being lucky.

1837, L[etitia] E[lizabeth] L[andon], “Success”, in Ethel Churchill: Or, The Two Brides. […], volume II, London: Henry Colburn, […], page 77

And then too it was exhilarating to see the baron come sailing in with a pair of soubrettes on his arm—each time a different pair.

1936, Henry Miller, “The Tailor Shop”, in Black Spring, Paris: The Obelisk Press […]; republished New York, N.Y.: Grove Press, 1963, page 98

This version of the fragile, yet touching story accents the romance and courtship of the schoolmaster, properly called Mr. Chipping, and the music hall soubrette he falls in love with while vacationing in Pompeii.

1969, Film Bulletin, volume 38, page 127

The servants in the hall tonight are whitely-wigged black slaves in livery of a certain grade of satin and refinement of lace,– black Major-domos and black Soubrettes.

1997, Thomas Pynchon, Mason & Dixon