/twin"suyz'/ , adj.
1. (of a bed) approximately 39 in. (99 cm) wide and between 75 and 76 in. (191 and 193 cm) long; single.
2. pertaining to or made for a twin-size bed: twin-size sheets. Cf. full-size, king-size, queen-size .
Also, twin-sized .
[ 1925-30 ]