admixture

noun

1. 1

   the act of mixing together

   paste made by a mix of flour and water

   the mixing of sound channels in the recording studio

2. 2

   an additional ingredient that is added by mixing with the base

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

   a large intermixture of sand

3. 3

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