mix·er (mĭk′sər) n. 1. One that mixes: a mixer of concrete; a mixer of drinks. 2. A sociable person: She’s outgoing and a good mixer. 3. An informal dance or party arranged to give members of a group an opportunity to get acquainted. 4. A device that blends or mixes substances or ingredients, especially by mechanical agitation. 5. A nonalcoholic …

