Tertiary

Webster's Dictionary of the English Language

·noun The Tertiary era, period, or formation.

II. Tertiary ·adj Later than, or subsequent to, the Secondary.

III. Tertiary ·adj Growing on the innermost joint of a bird's wing; tertial;

— said of quills.

IV. Tertiary ·adj Being of the third formation, order, or rank; third; as, a tertiary use of a word.

V. Tertiary ·noun One of the quill feathers which are borne upon the basal joint of the wing of a bird. ·see ·Illust. of Bird.

VI. Tertiary ·adj Possessing some quality in the third degree; having been subjected to the substitution of three atoms or radicals; as, a tertiary alcohol, amine, or salt. ·cf. Primary, and Secondary.

VII. Tertiary ·noun 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.