号头 Traditional form: 號頭 Pinyin (reading): hàotóu Definitions: number serial number Characters: 号 - mark, sign; symbol; number; to call, to cry, to roar 头 - head; chief, boss; first, top Traditional characters: 號 - mark, sign; symbol; number; to call, to cry, to roar 頭 - head; chief, boss; first, top