reddle n 1: a red iron ore used in dyeing and marking [syn: {ruddle}, {reddle}, {raddle}]
Reddle \Red"dle\ (r?d"d'l), n. [From {Red}; cf. G. r["o]thel. Cf. {Ruddle}.] (Min.) Red chalk. See under {Chalk}. [1913 Webster] Red dog