Lui·se·ño 
(lwē-sānyō)
(lwē-sānyō)n. pl. Luiseño or Lui·se·ños
1. A member of a Native American people inhabiting the coastal area of California south of Los Angeles.
2. The Uto-Aztecan language of the Luiseño.
[American Spanish, from San Luis Rey de Francia, a Spanish mission founded in Luiseño territory.]