DICT.TW Dictionary Taiwan

 Ter·ti·a·ry, n.; pl. Tertiaries
 1. R. C. Ch. A member of the Third Order in any monastic system; as, the Franciscan tertiaries; the Dominican tertiaries; the Carmelite tertiaries. See Third Order, under Third.
 2. Geol. The Tertiary era, period, or formation.
 3. Zool. One of the quill feathers which are borne upon the basal joint of the wing of a bird. See Illust. of Bird.
 ◄ ►