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A genus of extinct Tertiary Foraminifera, having a thin, flat, round shell, containing a large number of small chambers arranged spirally.

One of the tertiary colors, composed of violet and green mixed in equal strength and proportion.

A genus of extinct herbivorous mammals, abundant in the Tertiary formation of the Rocky Mountains. It is more or less related to the camel, hog, and deer.

An extinct genus of herbivorous Tertiary mammals, once supposed to have resembled the tapir in form, but now known to have had a more slender form, with a long neck like that of a llama. [Written also Palæotherium.]

One of the great divisions of geological time; as, the Tertiary period; the Glacial period. See the Chart of Geology.

Of or pertaining to the epoch, or the deposits, following the Tertiary, and immediately preceding man. -- n.

Of, pertaining to, or characterizing, the most recent division of the Tertiary age.

hyde and acid having the same number of carbon atoms; -- distinguished from secondary and tertiary alcohols. -- Primary amine (Chem.), an amine containing the amido group, or a derivative of ammonia in which only one atom of hydrogen has been replaced by a basic radical; -- distinguished from secondary and tertiary am…

Later than, or subsequent to, the Tertiary; Post-tertiary; as, the Quaternary age, or Age of man.

Note under Accent, n., 1. -- Secondary age. (Geol.) The Mesozoic age, or age before the Tertiary. See Mesozoic, and Note under Age, n., 8. -- Secondary alcohol (Chem.), any one of a series of alcohols which contain the radical CH.OH united with two hydrocarbon radicals. On oxidation the secondary alcohols form keton…

A genus of very large extinct ruminants found in the Tertiary formation of India. The snout was prolonged in the form of a proboscis. The male had four horns, the posterior pair being large and branched. It was allied to the antelopes, but very much larger than any exsisting species.

Under, or at the foot of, the Apennine mountains; -- applied, in geology, to a series of Tertiary strata of the older Pliocene period.

y hereditary transmission, and occurring in three stages known as primary, secondary, and tertiary syphilis. See under Primary, Secondary, and Tertiary.Treponema pallidum. Usu. tretable with penicillin or other beta-lactam antibiotics.

An order of extinct Mammalia found in the Tertiary formations.

Same as Tertiary.

simple vow if they remain seculars, and by more solemn vows if they become regulars. See Tertiary, n., 1. -- Third person (Gram.), the person spoken of. See Person, n., 7. -- Third sound. (Mus.) See Third, n., 3.

An extinct order of Mammalia found in the South American Tertiary formation. The incisor teeth were long and curved and provided with a persistent pulp. They are supposed to be related both to the rodents and ungulates. Called also Toxodontia.

A tertiary amine analogous to trimethylamine.

An extinct genus of artiodactylous mammals found in the European Tertiary formations. It had slender legs, didactylous feet, and small canine teeth.