• noun:   (chemistry) a substance consisting of two or more substances mixed together (not in fixed proportions and not with chemical bonding)
• noun:   an event that combines things in a mixture

  Example: "A gradual mixture of cultures"

• noun:   any foodstuff made by combining different ingredients

  Example: "He drank a mixture of beer and lemonade"

• noun:   a collection containing a variety of sorts of things
• noun:   the act of mixing together

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