admixture

noun

1. the state of impairing the quality or reducing the value of something

   noun.state

   Synonyms alloy

   Source: WordNet 3.0

2. an additional ingredient that is added by mixing with the base

   noun.artifact

   Examples

   The growing medium should be equal parts of sand and loam with an admixture of peat moss and cow manure.

   Synonyms intermixture

   Source: WordNet 3.0

3. the act of mixing together

   noun.act

   Synonyms commixture intermixture mix mixing mixture

   Source: WordNet 3.0

4. The act of mixing; mixture.

   noun

   Source: webster1913