admixture

1. An instance of admixing, a mixing in of something. (countable, uncountable) · The admixture of vanilla extract in the dough improved the pastries' flavor.
2. A mixing-in of a biologically or genetically differentiated group to an established stock. (countable, uncountable)
3. A mixture, in some contexts (countable, uncountable)
4. a mixture composed of entities retaining their individual properties. (countable, uncountable) · Background EEG demonstrates an admixture of theta and delta waves.

Plural admixtures