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tertiary
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- Tertiary - a. - Being of the third formation, order, or rank; third; as, a tertiary use of a word.
- Tertiary - a. - 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.
- Tertiary - a. - Later than, or subsequent to, the Secondary.
- Tertiary - a. - Growing on the innermost joint of a bird's wing; tertial; -- said of quills.
- Tertiary - n. - 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.
- Tertiary - n. - The Tertiary era, period, or formation.
- Tertiary - n. - One of the quill feathers which are borne upon the basal joint of the wing of a bird. See Illust. of Bird.
- Faluns - n. - A series of strata, of the Middle Tertiary period, of France, abounding in shells, and used by Lyell as the type of his Miocene subdivision.
- Syphilis - n. - The pox, or venereal disease; a chronic, specific, infectious disease, usually communicated by sexual intercourse or by hereditary transmission, and occurring in three stages known as primary, secondary, and tertiary syphilis. See under Primary, Secondary, and Tertiary.
- Hipparion - n. - An extinct genus of Tertiary mammals allied to the horse, but three-toed, having on each foot a small lateral hoof on each side of the main central one. It is believed to be one of the ancestral genera of the Horse family.
- Triethylamine - n. - A tertiary amine analogous to trimethylamine.
- Molasse - n. - A soft Tertiary sandstone; -- applied to a rock occurring in Switzerland. See Chart of Geology.
- Olive - n. - One of the tertiary colors, composed of violet and green mixed in equal strength and proportion.
- Xiphodon - n. - An extinct genus of artiodactylous mammals found in the European Tertiary formations. It had slender legs, didactylous feet, and small canine teeth.
- Paleotherium - n. - 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.
- Period - n. - One of the great divisions of geological time; as, the Tertiary period; the Glacial period. See the Chart of Geology.
- Laramie group - - An extensive series of strata, principally developed in the Rocky Mountain region, as in the Laramie Mountains, and formerly supposed to be of the Tertiary age, but now generally regarded as Cretaceous, or of intermediate and transitional character. It contains beds of lignite, often valuable for coal, and is hence also called the lignitic group. See Chart of Geology.
- Tertiary - n. - The Tertiary era, period, or formation.
- Eocene - a. - Pertaining to the first in time of the three subdivisions into which the Tertiary formation is divided by geologists, and alluding to the approximation in its life to that of the present era; as, Eocene deposits.
- Toxodonta - n.pl. - 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.
- Sivatherium - n. - 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.
- Oreodon - n. - 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.
- Subapennine - a. - Under, or at the foot of, the Apennine mountains; -- applied, in geology, to a series of Tertiary strata of the older Pliocene period.
- Amblypoda - n. pl. - A group of large, extinct, herbivorous mammals, common in the Tertiary formation of the United States.
- Pliocene - a. - Of, pertaining to, or characterizing, the most recent division of the Tertiary age.
- Nummulites - n. - A genus of extinct Tertiary Foraminifera, having a thin, flat, round shell, containing a large number of small chambers arranged spirally.
- Coryphodon - n. - A genus of extinct mammals from the eocene tertiary of Europe and America. Its species varied in size between the tapir and rhinoceros, and were allied to those animals, but had short, plantigrade, five-toed feet, like the elephant.
- Tertiary - a. - 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.
- Tertiary - a. - Being of the third formation, order, or rank; third; as, a tertiary use of a word.
- Crag - n. - A partially compacted bed of gravel mixed with shells, of the Tertiary age.
- Alabama period - - A period in the American eocene, the lowest in the tertiary age except the lignitic.
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