/plat"euhr/ , n.
1. a large, shallow dish, usually elliptical in shape, for holding and serving food, esp. meat or fish.
2. a course of a meal, usually consisting of a variety of foods served on the same plate.
3. Slang. a phonograph record.
4. Motion Picture Slang. a part of a motion-picture projector, consisting of a large, horizontally rotating disk that houses a feature film.
[ 1250-1300; ME plater plat dish. See PLATE 1 , -ER 2 ]