the act or process of commixing.
the condition of being commixed; mixture.
(in a Eucharistic service) the placing of a part of the Host in the chalice.

Origin of commixture

1580–90; < Latin commixtūra, equivalent to commixt(us) (see commix) + -ūra -ure Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for commixture