rare. Also 89 terceron, 9 tierceroon. [a. Sp. *terceron, f. tercero a third person, f. tercio third: cf. cuarteron, quinteron.] The offspring of a white person and a mulatto, being third in descent from a negro; = QUADROON 1 a: see note there. (Distinguished from QUADROON 1 b.)
176072. trans. Juan Ulloas Voy. (ed. 3), I. 29. The Tercerones, produced from a White and a Mulatio, with some approximation to the former, but not so near as to obliterate their origin.
1819. W. Lawrence, Lect. Physiol., etc. 296. Europeans and Mulattos produce Tercerons (sometimes also called Quarterons, Moriscos, and Mestizos) . Europeans and Tercerons produce Quarterons or Quadroons.
1878. Bartley, trans. Topinards Anthropol., II. vii. 374. The mixed breeds of negroes and Europeans have various names . The first are called mulatoes, the second, tierceroons.