Definitions
from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun A unit of two objects; a pair.
from The Century Dictionary.
- noun Same as
dyad . - noun In mathematics, an unordered, pair; two objects considered as making up one, and as the same one whichever is taken first.
from the GNU version of the Collaborative International Dictionary of English.
- noun rare A union of two; duality.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun A
pair orcouple - noun mathematics an
unordered pair - noun astrology dwadasama
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun two items of the same kind
Etymologies
from The American Heritage® Dictionary of the English Language, 4th Edition
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Examples
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From the monad proceeds an indefinite duad, which is subordinate to the monad as to its cause.
A History of Science: in Five Volumes. Volume I: The Beginnings of Science 1904
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Pythagorean system, to denote respectively the _monad_, or active principle of nature; the _duad_, or passive principle; the _triad_, or world emanating from their union; and the _quaterniad_, or intellectual science; the whole number of points amounting to ten, the symbol of perfection and consummation.
The Symbolism of Freemasonry Albert G. Mackey
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A figure used by Pythagoras, consisting of ten points, arranged in a triangular form so as to represent the monad, duad, triad, and quarterniad.
The Symbolism of Freemasonry Albert G. Mackey
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That from the monad and the indefinite duad proceed numbers.
A History of Science: in Five Volumes. Volume I: The Beginnings of Science 1904
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It is possible to think of the soul as a reincarnating entity, whether it be a monad, duad, triad, or septenary being.
Reincarnation and the Law of Karma A Study of the Old-New World-Doctrine of Rebirth, and Spiritual Cause and Effect William Walker Atkinson 1897
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It would be interesting to know why this duad remains as a duad in selenium and breaks up into a septad and triad in the other members of the group.
Occult Chemistry Clairvoyant Observations on the Chemical Elements Annie Wood Besant 1890
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The contained bodies in the pillars run three, four, five, four, three, two, instead of starting with two; and a quartet replaces a duad in the globes above.
Occult Chemistry Clairvoyant Observations on the Chemical Elements Annie Wood Besant 1890
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The pillars are the same as in chlorine and its congeners, with a duad added at the base.
Occult Chemistry Clairvoyant Observations on the Chemical Elements Annie Wood Besant 1890
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Apart from this, the composition is simple enough, all the ovoids being alike, and composed of a triplet, a septet and a duad.
Occult Chemistry Clairvoyant Observations on the Chemical Elements Annie Wood Besant 1890
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They yield, on the hyper level, two triads, a duad, and a unit.
Occult Chemistry Clairvoyant Observations on the Chemical Elements Annie Wood Besant 1890
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