The Collaborative International Dictionary of English v.0.48:
Washable \Wash"a*ble\, a. Capable of being washed without damage to fabric or color. [1913 Webster]WordNet (r) 3.0 (2006):
washable adj 1: capable of being washed without injury; "washable woolens"; "acrylic blankets are both warm and washable" [ant: nonwashable]