c. 1600, with -ure, from admix (1530s), a back-formation from admixt (early 15c.), from Latin admixtus "mixed with," past participle of admiscere "to add to by mingling, mix with," [..]

Admixture refers to ancestry from more than one recent population group. Many people today have ancestry from more than one population and/or location.

An admixture occurs when two previously separated populations begin interbreeding. It can be used to refer to ethnically mixed human populations, as well as to mixed animal or plant breeds.

Ingredients in concrete other than cement, water, and aggregates that are added during mixing to enhance its properties, control setting and early hardening, or improve workability. Admixtures include [..]

(n) the state of impairing the quality or reducing the value of something(n) an additional ingredient that is added by mixing with the base(n) the act of mixing together

A material added to a concrete or shotcrete mix, which alters the properties of the mix or the final product.

Substance other than prescribed materials of water, aggregate and cementitious materials added to concrete, mortar or grout to improve one or more chemical or physical properties.

A material other than water, aggregate, or hydraulic cement used as an ingredient of concrete and added to concrete before or during its mixing to modify its properties.

An instance of admixing, a mixing-in of something. ''The admixture of vanilla extract in the dough improved the pastries' flavor.'' # A mixing-in of a biologically or genetically differentiated g [..]