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Quaternary   /kwˈɑtərnˌɛri/   Listen

Last 2 million years.  Synonyms: Age of Man, Quaternary period.
The cardinal number that is the sum of three and one.  Synonyms: 4, four, foursome, IV, Little Joe, quadruplet, quartet, quatern, quaternion, quaternity, tetrad.

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"Quaternary" Quotes from Famous Books

... hydrated peroxide of iron to a peculiar porous sandstone, called by the natives cabook. This sandstone forms the layer lying next the rock in nearly all the hills on that part of the island which we visited. It evidently belongs to an earlier geological period than the Quaternary, for it is older than the recent formation of valleys and rivers. The cabook often contains large, rounded, unweathered granite blocks, quite resembling the rolled-stone blocks in Sweden. In this way there arise ...
— The Voyage of the Vega round Asia and Europe, Volume I and Volume II • A.E. Nordenskieold

... glacial condition. After a period of prodigious length, the temperature again rose, and the glaciers that had so extensively covered the surface receded. Once more there was a decline in the heat, and the glaciers again advanced, but this time not so far as formerly. This ushered in the Quaternary period, during which very slowly the temperature came to its present degree. The water deposits that were being made required thousands of centuries for their completion. At the beginning of the Quaternary period there were alive the cave-bear, the cave-lion, the amphibious hippopotamus, ...
— History of the Conflict Between Religion and Science • John William Draper

... as have been published it appears that the rock formations of Santo Domingo correspond to the secondary, the lower and middle tertiary and the quaternary epoch. The most ancient part of the island is the central mountain range, also a series of protuberances in the Samana peninsula, the nucleus of the Baboruco mountains and a single point in the northern ...
— Santo Domingo - A Country With A Future • Otto Schoenrich

... covering the whole continent, and then with the great currents which ensued upon the breaking up of that mass of ice. He who does not distinguish between these two series of facts, and perceive their connection, does not understand the geology of the Quaternary epoch. ...
— Louis Agassiz: His Life and Correspondence • Louis Agassiz

... pithecanthropi men developed genuine man, by the development of the animal language of sounds into a connected or articulate language of words—the brain also developed higher and higher. This transition took place, probably, at the beginning of the quaternary period, or ...
— Was Man Created? • Henry A. Mott

... produce corresponding sphericity in the binary compound; for the forms of extension belonging to the latter are said to be minuteness (a/n/utva) and shortness. And, again, when two binary compounds combining produce a quaternary atomic compound, the qualities, such as whiteness, &c., inherent in the binary compounds produce corresponding qualities in the quaternary compounds; with the exception, however, of the two qualities of minuteness and shortness. For it is admitted that the forms of extension belonging to quaternary ...
— The Vedanta-Sutras with the Commentary by Sankaracarya - Sacred Books of the East, Volume 1 • George Thibaut

... merely a primary and a secondary winding, and in other cases the four windings all act separately, in which case one may be considered the primary and the others, respectively, the secondary, tertiary, and quaternary. ...
— Cyclopedia of Telephony & Telegraphy Vol. 1 - A General Reference Work on Telephony, etc. etc. • Kempster Miller

... of organic origin. Thus he cites as an example of his theory the vast elevated plains of Tartary, which he thought had been dry land from time immemorable, though we now know that the rise took place in the quaternary or present period. On the other hand, given these vast elevated plains, he was correct in affirming that rivers flowing through them wore out enormous valleys and carved out high mountains, left standing by atmospheric erosion, for examples of such are to be seen in the valley ...
— Lamarck, the Founder of Evolution - His Life and Work • Alpheus Spring Packard

... the French anthropologist G. de Mortillet to the first epoch of the Quaternary period when the earliest human remains are discoverable. The word is derived from the French town Chelles in the department of Seine-et-Marne. The climate of the Chellian epoch was warm and humid as evidenced by the wild growth of fig-trees and laurels. The animals characteristic ...
— Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 1 - "Chtelet" to "Chicago" • Various

... that, sooner or later, we shall discover the remains of our less specialised primatic ancestors in the strata which have yielded the less specialised equine and canine quadrupeds. At present, fossil remains of men do not take us hack further than the later part of the Quaternary epoch; and, as was to be expected, they do not differ more from existing men, than Quaternary horses differ from existing horses. Still earlier we find traces of man, in implements, such as are ...
— Collected Essays, Volume V - Science and Christian Tradition: Essays • T. H. Huxley

... quadruplet; quatrefoil. [object or animal with four legs] tetrapod. [geographical area with four sides] quadrangle, quad[coll.]. [electromagnetic object] quadrupole. [four fundamental studies] quadrivium. V. reduce to a square, square. Adj. four; quaternary, quaternal[obs3]; quadratic; quartile; tetract[obs3], tetractic[obs3], tetractinal[obs3]; tetrad, tetragonal; ...
— Roget's Thesaurus

Words linked to "Quaternary" :   recent, Holocene epoch, Cenozoic, Holocene, multiple, glacial epoch, Pleistocene epoch, Cenozoic era, period, figure, Recent epoch, digit, ordinal, Pleistocene, geological period, Age of Mammals

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