Definition of cultural hegemony in US English:

cultural hegemony

noun

  • Cultural dominance or ascendancy; the predominance of a particular set of cultural norms; specifically (in Marxist theory) the cultural domination of a society by a ruling class which imposes or inculcates its own ideas, values, etc., thereby ensuring acceptance of the status quo by other classes.

Origin

Early 20th century; earliest use found in Young India.