admixture

Latin admixtūra, from admixtus, past participle of admisceō (“to mix in”), from misceō (“to mix”). Analyzable as ad- +‎ mixture.

• IPA^(key): /ədˈmɪkst͡ʃə(ɹ)/, /ædˈmɪkst͡ʃə(ɹ)/

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admixture (countable and uncountable, plural admixtures)

1. An instance of admixing, a mixing in of something.

   The admixture of vanilla extract in the dough improved the pastries' flavor.

   1. A mixing-in of a biologically or genetically differentiated group to an established stock.
      • 1883, Robert Louis Stevenson, Treasure Island:

        […] the wood still flourished high and dense, all of fir on the land side, but towards the sea with a large admixture of live oaks.

      • 1928, H. P. Lovecraft and Zealia Bishop, The Curse of Yig:

        Both were lean, raw-boned specimens; the man tall, sandy, and grey-eyed, and the woman short and rather dark, with a black straightness of hair suggesting a slight Indian admixture.

2. A mixture, in some contexts
   1. (epilepsy) a mixture composed of entities retaining their individual properties.

      Background EEG demonstrates an admixture of theta and delta waves.

• admix (back-formation)

admixtūre

1. vocative masculine singular of admixtūrus