螺号 Traditional form: 螺號 Pinyin (reading): luóhào Definitions: conch shell as horn for signaling Characters: 螺 - spiral shell, conch; spiral 号 - mark, sign; symbol; number; to call, to cry, to roar Traditional characters: 螺 - spiral shell, conch; spiral 號 - mark, sign; symbol; number; to call, to cry, to roar