Wordnet 3.0
NOUN (1)
1. 
 either of the anterior pair of wings on an insect that has four wings; 
[syn: forewing, fore-wing, fore wing]
WordNet (r) 3.0 (2006):
forewing
    n 1: either of the anterior pair of wings on an insect that has
         four wings [syn: forewing, fore-wing, fore wing]