admixture admixture /ædˈmɪkstʃər/

noun

1. The act of mixing together  ( admixture , commixture , intermixture , mix , mixing , mixture )
   the act of mixing together
    Paste made by a mix of flour and water
   paste made by a mix of flour and water
    The mixing of sound channels in the recording studio
   the mixing of sound channels in the recording studio
   
2. An additional ingredient that is added by mixing with the base  ( admixture , intermixture )
   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
   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
   a large intermixture of sand
   
3. The state of impairing the quality or reducing the value of something  ( admixture , alloy )
   the state of impairing the quality or reducing the value of something