Ingredient

That which enters into a compound, or is a component part of any combination or mixture; an element; a constituent.

Entering as, or forming, an ingredient or component part.

an abstract part of something; "jealousy was a component of his character"; "two constituents of a musical composition are melody and harmony"; "the grammatical elements of a sentence"; "a key factor in her success"; "humor: an effective ingredient of a speech"

food that is a component of a mixture in cooking; "the recipe lists all the fixings for a salad"