Definition of mulattoism in English:

mulattoism

Pronunciation /mjuːˈlatəʊɪz(ə)m/ /mjʊˈlatəʊɪz(ə)m/

noun

  • The interbreeding or sexual union of whites and non-whites resulting in the birth of mulattos. In later use also: the racial, social, and cultural mix resulting from such interbreeding; multiculturalism.

    See note at "mulatto".

Origin

Mid 19th century. From mulatto + -ism.