PARITY

parity

(noun) functional equality

parity, conservation of parity, space-reflection symmetry, mirror symmetry

(noun) (physics) parity is conserved in a universe in which the laws of physics are the same in a right-handed system of coordinates as in a left-handed system

parity

(noun) (mathematics) a relation between a pair of integers: if both integers are odd or both are even they have the same parity; if one is odd and the other is even they have different parity; “parity is often used to check the integrity of transmitted data”

parity, para

(noun) (obstetrics) the number of liveborn children a woman has delivered; “the parity of the mother must be considered”; “a bipara is a woman who has given birth to two children”

Source: WordNet® 3.1

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Etymology 1

Noun

parity (countable and uncountable, plural parities)

(uncountable) Equality; comparability of strength or intensity.

Senses related to classification into two sets.

(mathematics, countable) A set with the property of having all of its elements belonging to one of two disjoint subsets, especially a set of integers split in subsets of even and odd elements.

(mathematics, countable) The classification of an element of a set with parity into one of the two sets.

(computing) The count of one bits in a value, reduced to even or odd or zero or one.

(physics, countable) Symmetry of interactions under spatial inversion.

(games, countable) In reversi, the last move within a given sector of the board.

Resemblance; analogy.

Antonyms

• chirality

Etymology 2

Noun

parity (plural parities)

(medicine, countable) The number of delivered pregnancies reaching viable gestational age, usually between 20-28 weeks

(agriculture, countable) The number of times a sow has farrowed.

Source: Wiktionary

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Par"i*ty, n. Etym: [L. paritas, fr. par, paris, equal: cf. F. parité. See Pair, Peer an equal.]

Definition: The quality or condition of being equal or equivalent; A like state or degree; equality; close correspondence; analogy; as, parity of reasoning. "No parity of principle." De Quincey. Equality of length and parity of numeration. Sir T. Browne.

Source: Webster’s Unabridged Dictionary 1913 Edition

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