Parity meaning

părĭ-tē
Frequency:
Equality, as in amount, status, or value.
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Functional equivalence, as in the weaponry or military strength of adversaries.
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Parity is a situation where two or more things are equal.

An example of parity is parity in income, where two or more groups of people earn the same amount of money.

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The property of a physical system that entails how the system would behave if the coordinate system were reversed, each dimension changing sign from x, y, z to −x, −y, −z. If a system behaves in the same way when the coordinate system is reversed, then it is said to have even parity ; if it does not, it is said to have odd parity. For bosons, the antiparticle of any given particle has the same parity, odd or even, as that particle. For fermions, the antiparticle has the opposite parity.
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The equivalent in value of a sum of money expressed in terms of a different currency at a fixed official rate of exchange.
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A level for farm-product prices maintained by governmental support and intended to give farmers the same purchasing power they had during a chosen base period.
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The condition of having given birth.
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The state or condition of being the same in power, value, rank, etc.; equality.
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Resemblance; similarity.
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Equality of value at a given ratio between different kinds of money, commodities, etc.
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The condition existing between two integers that are both odd or both even.
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A symmetry property of a wave function: expressed as +1 if no difference can be detected between the wave function and its mirror image, and as –1 if the wave function is changed only in sign.
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The condition of having given birth.
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The number of 1's in a piece of binary code, generally taken as the quality of odd or even rather than as a specific number. The parity of packets of binary data is often transmitted along with the data to help detect whether the value of any bits has been altered.
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Equality. The term is used in the foreign exchange market to talk about two currencies’ parity with each other. For instance, as the exchange rate for the dollar and euro both approach 1, they are said to be at parity.
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In the context of mathematics, the quality of being equally odd or equally even. If two numbers are both odd in value, or both are even in value, parity exists. If one number is odd and the other is even, no parity exists.
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(uncountable) Equality; comparability of strength or intensity.
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(mathematics, countable) The classification of an element of a set with parity into one of the two sets.

The particles' parities can switch at random.

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(physics, countable) Symmetry of interactions under spatial inversion.
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(medicine, countable) The number of times a woman has given birth.
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Equality of prices of goods or securities in two different markets.
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The even or odd quality of an integer. If two integers are both odd or both even, they are said to have the same parity; if one is odd and one even, they have different parity.
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The number of children borne by one woman.
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Equivalence in value of one currency expressed in terms of another country's currency.
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A price for certain farm products, usually maintained by government price supports, designed to keep the purchasing power of the farmer at the level of a designated base period.
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The state or fact of having borne offspring.
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The number of children borne by one woman.
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A quantum number, either +1 or −1, that mathematically describes this property.
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The state or quality of equality, i.e., being the same, or identical.
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In error control, the quality of being equally odd or equally even. If the dataset, as transmitted, has an odd (or even) number of 1 bits and the dataset, as received, has an odd (or even) number of 1 bits, parity exists. If the dataset, as transmitted, has an odd (or even) number of 1 bits and the dataset, as received, has an even (or odd) number of 1 bits, parity does not exist. See also error control, parity bit, and parity check.
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(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.

Parity is always preserved in such operations.

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(games, countable) In reversi, the last move within a given sector of the board.
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(agriculture, countable) The number of times a sow has farrowed.
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Origin of parity

  • French parité from Old French parite from Late Latin paritās from pār par- equal pair

    From American Heritage Dictionary of the English Language, 5th Edition

  • Latin parere to give birth, bring forth perə-1 in Indo-European roots –ity

    From American Heritage Dictionary of the English Language, 5th Edition

  • From French parité, from Latin paritas, from pār (“equal")

    From Wiktionary

  • From Latin paritas, from pariō (“give birth")

    From Wiktionary