The Collaborative International Dictionary of English v.0.48:
balaclava \balaclava\ n. close-fitting and woolen and covers all of the head but the face. Syn: balaclava helmet. [WordNet 1.5]WordNet (r) 3.0 (2006):
balaclava n 1: a cap that is close-fitting and woolen and covers all of the head but the face [syn: balaclava, balaclava helmet]