Pronunciation: (prē-tēn'),[key] —n. 1. Also called pre•teen•ag•erPronunciation: (prē-tēn'ā"jur),[key]pre•teen'er. a boy or girl under the age of 13, esp. one between the ages of 9 and 12.
2. preteens,the years immediately preceding one's thirteenth birthday.
—adj. designating or characteristic of a preteen or preteens: two preteen daughters.