Definition of tertiary

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Tertiary (a.) Being of the third formation, order, or rank; third; as, a tertiary use of a word..

Lern More About Tertiary

Pretertiary :: Pretertiary (a.) Earlier than Tertiary.
Tertiary :: Tertiary (a.) Growing on the innermost joint of a bird's wing; tertial; -- said of quills.
Tertiary :: Tertiary (a.) Later than, or subsequent to, the Secondary..
Tertiary :: 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..
Pliocene :: Pliocene (a.) Of, pertaining to, or characterizing, the most recent division of the Tertiary age..
Paleotherium :: 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..
Tertiary :: Tertiary (n.) The Tertiary era, period, or formation..
Crag :: Crag (n.) A partially compacted bed of gravel mixed with shells, of the Tertiary age..
Triethylamine :: Triethylamine (n.) A tertiary amine analogous to trimethylamine.
Period :: Period (n.) One of the great divisions of geological time; as, the Tertiary period; the Glacial period. See the Chart of Geology..
Hipparion :: 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..
Nummulites :: Nummulites (n.) A genus of extinct Tertiary Foraminifera, having a thin, flat, round shell, containing a large number of small chambers arranged spirally..
Tertiary :: Tertiary (a.) Being of the third formation, order, or rank; third; as, a tertiary use of a word..
Subapical :: 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..
Coryphodon :: 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..
Xiphodon :: Xiphodon (n.) An extinct genus of artiodactylous mammals found in the European Tertiary formations. It had slender legs, didactylous feet, and small canine teeth..
Syphilitic :: 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..
Tertiary :: 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..
Tertial :: Tertial (a. & n.) Same as Tertiary.
Posttertiary :: Posttertiary (a.) Following, or more recent than, the Tertiary; Quaternary..
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