Quaternary – מילון אנגלי-אנגלי
quaternary
adj.
composed of four parts; arranged in quarters; pertaining to the present geological period, of the second part of the Cenozoic era (Geology)
n.
group of four; number four; second part of the Cenozoic era, present geologic period (Geology)
Quaternary
The
Quaternary Period is the current and most recent of the three
periods of the
Cenozoic Era in the
geologic time scale of the
International Commission on Stratigraphy (ICS). It follows the
Neogene Period and spans from 2.588 ± 0.005 million years ago to the present. The Quaternary Period is divided into two epochs: the
Pleistocene (2.588 million years ago to 11.7 thousand years ago) and the
Holocene (11.7 thousand years ago to today). The informal term "Late Quaternary" refers to the past 0.5–1.0 million years.
Quaternary
Noun
1. last 2 million years
(synonym) Quaternary period, Age of Man
(hypernym) period, geological period
(part-holonym) Cenozoic, Cenozoic era, Age of Mammals
(part-meronym) Holocene, Holocene epoch, Recent epoch
quaternary
Noun
1. the cardinal number that is the sum of three and one
(synonym) four, 4, IV, tetrad, quatern, quaternion, quaternity, quartet, quadruplet, foursome, Little Joe
(hypernym) digit, figure
Adjective
1. consisting of or especially arranged in sets of four; "quaternate leaves"; "a quaternary compound"
(synonym) quaternate
(similar) multiple
2. coming next after the third and just before the fifth in position or time or degree or magnitude; "the quaternary period of geologic time extends from the end of the tertiary period to the present"
(synonym) fourth, 4th
(similar) ordinal
Quaternary
(n.)
The Quaternary age, era, or formation. See the Chart of Geology.
(n.)
The number four.
(a.)
Later than, or subsequent to, the Tertiary; Post-tertiary; as, the Quaternary age, or Age of man.
(a.)
Consisting of four; by fours, or in sets of four.
Webster's Revised Unabridged Dictionary (1913), edited by Noah Porter.
About
Quaternary
Quaternary A group of four; the number four, fourfold. Many quaternary groupings may be made. The septenate is divisible into three and four, usually as the higher triad and the lower quaternary; here the quaternary is terrestrial as opposed to celestial, mortal as opposed to immortal, material as opposed to spiritual. It is seen in the four lower human principles, the four lower cosmic elements, the fourfold shapes in physical bodies, etc. It is the square of the number 2; the first of the regular polyhedra is the tetrahedron or triangular pyramid, having four sides and four corners. The septenate may otherwise be regarded as two triangles and a central point, as in Solomon's seal; and this gives two quaternaries, a higher and a lower, by adding the point to either of the triangles. These two quaternaries are also called the higher and lower -- or celestial and terrestrial -- tetraktys. The higher group is given in Platonism as: to agathon, nous, psyche, and hyle; and the lower group is the four cosmic elements of fire, earth, air, and water. The lower tetraktys is said to be the root of illusion or mahamaya, and this is what the Tetragrammaton, or four-lettered name, becomes in materialized Judaism.
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