Nipper

Noun

 * 1) One who, or that which, nips.
 * 2)  Any of various devices (as pincers) for nipping.
 * 3)  A child.
 * 4)  Young child in the Australian surf life-saving clubs.
 * 5)  A mosquito.
 * 6) One of four foreteeth in a horse.

Thesaurus
bairn, bud, cherub, chick, chickabiddy, child, chit, claws, clutches, darling, digits, fangs, fingernails, fingers, hands, hooks, innocent, jaws, juvenile, kid, kitten, lamb, lambkin, little bugger, little fellow, little guy, little innocent, little one, little tad, little tot, mandibles, maxillae, meathooks, mite, mitts, moppet, nails, nippers, offspring, palm, peewee, pincers, pounces, shaver, tad, talons, teeth, tot, unguals, ungulae, wee tot, youngling, youngster