From WordNet (r) 3.0 (2006):
nipper
n 1: a young person of either sex; "she writes books for
children"; "they're just kids"; "`tiddler' is a British
term for youngster" [syn: child, kid, youngster,
minor, shaver, nipper, small fry, tiddler,
tike, tyke, fry, nestling]
2: a grasping structure on the limb of a crustacean or other
arthropods [syn: claw, chela, nipper, pincer]