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equality of rank, pay, etc

close or exact analogy or equivalence

finance

1. the amount of a foreign currency equivalent at the established exchange rate to a specific sum of domestic currency

2. a similar equivalence between different forms of the same national currency, esp the gold equivalent of a unit of gold-standard currency

equality between prices of commodities or securities in two separate markets

physics

1. a property of a physical system characterized by the behaviour of the sign of its wave function when all spatial coordinates are reversed in direction. The wave function either remains unchanged ( even parity ) or changes in sign ( odd parity )

2. P.��a quantum number describing this property, equal to +1 for even parity systems and –1 for odd parity systems See also conservation of parity

maths a relationship between two integers. If both are odd or both even they have the same parity; if one is odd and one even they have different parity

(in the US) a system of government support for farm products

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.

See also conservation law parity conjugation

A quantum number, either +1 or −1, that mathematically describes this property.

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.