Source : WordNet®

preteen
     adj : of or relating to or designed for children between the ages
           of 9 and 12; "a preteen party"; "preteen clothing"
           [syn: {preadolescent}]

preteen
     n : a preadolescent boy or girl (usually between 9 and 12 years
         of age); "little league is intended for the preteens"
         [syn: {preteenager}]