Pronunciation: (kär'tn),[key] —n. 1. a cardboard or plastic box used typically for storage or shipping.
2. the amount a carton can hold.
3. the contents of a carton.
4. a cardboardlike substance consisting of chewed plant material often mixed with soil, made by certain insects for building nests.
—v.t. to pack in a carton: to carton eggs for supermarket sales.
—v.i. to make or form cardboard sheets into cartons.