noun (sometimes initial capital letters) Spanish.
(used with a plural verb) Mexican Americans collectively.
(used with a singular verb) Mexican-American culture.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
in La Raza, literally "the race," 1964, from American Spanish (see race (n.2)), "designating the strong sense of racial and cultural identity held by Mexican-Americans" [OED].
Online Etymology Dictionary, © 2010 Douglas Harper