- something that enters as an element into a mixture: Flour, eggs, and sugar are the main ingredients in the cake.
- a constituent element of anything; component: the ingredients of political success.
- a component of a mixture, compound, etc, esp in cooking
early 15c., from Latin ingredientem (nominative ingrediens) “that which enters into” (a compound, recipe, etc.), present participle of ingredi “go in, enter,” from in- “in” (see in- (2)) + gradi “to step, go” (see grade).