Definition of "Mixture" :

noun: the act of mixing together

noun: an event that combines things in a mixture

"A gradual mixture of cultures."

noun: any foodstuff made by combining different ingredients

"He drank a mixture of beer and lemonade."

noun: a collection containing a variety of sorts of things

noun: (chemistry) a substance consisting of two or more substances mixed together (not in fixed proportions and not with chemical bonding)