Wiktionary
chin guard
alt. A protective guard for a person's chin. n. A protective guard for a person's chin.
Usage examples of "chin guard".
Snake-Eyes smoothed back his long hair and pulled on the helmet leaving the greasy tangle of whiskers sticking out from under the chin guard.
His sleekly molded full-head helmet was equipped with an integrated, handsfree wireless audio/video system, its dime-sized color digital camera lens invisible above his forehead, its microphone embedded in the chin guard.