# Parity

Parity

Parity is a concept of equality of status or functional equivalence. It has several different specific definitions.

* Parity (physics), the name of the symmetry of interactions under spatial inversion
* Parity (mathematics) indicates whether a number is even or odd
* Parity (medicine), the number of times a woman or female animal has given birth
* Parity Pricing (marketing)
* Parity bit, in computing, a very simple example of an error detecting code
* Purchasing power parity, in economics, an estimate of the exchange rate required to equalise the purchasing power of different currencies, given the prices of goods and services in the countries concerned
* Interest rate parity, in finance, refers to the notion that the differential in interest rates between two countries is equal to the differential between the forward exchange rate and the spot exchange rate
* Base parity, in human genetics, the G/C ratio in regions of DNA
* Put–call parity, in financial mathematics, defines a relationship between the price of a European call option and a European put option—both with the identical strike price and expiry
* Parity (sports) refers to engineering an equal playing field in which all teams can compete, regardless of their economic circumstances
* In demography, the number of reproductive events (births)
* Potty parity attempts to equalize the waiting times of males and females in restroom queues by designating or building more women's restrooms, giving them more facilities to use
* A tactic in othello
* Militarily, it refers to having a comparable force as one's enemy, such as geopolitically as in mutual assured destruction
* Parity is a case on a Rubik's Revenge cube that may not occur on 3x3 Rubik's Cube
* Grid parity of renewable energy.

Wikimedia Foundation. 2010.

Synonyms:

### Look at other dictionaries:

• Parity — Par i*ty, n. [L. paritas, fr. par, paris, equal: cf. F. parit[ e]. See {Pair}, {Peer} an equal.] 1. The quality or condition of being equal or equivalent; a like state or degree; equality; equivalence; close correspondence; analogy; as, parity of …   The Collaborative International Dictionary of English

• parity — I noun alikeness, analogy, approximation, balance, close correspondence, coequality, comparability, comparison, correlation, correspondence, equability, equality, equation, equilibrium, equipoise, equivalence, equivalency, identical value,… …   Law dictionary

• parity — parity. Факт рождения ребенка; используется как количественный показатель при описании родословных <pedigree>: 0 живых детей нет (независимо от количества беременностей), 1, 2 и т.д. число родов (независимо от числа родившихся детей).… …   Молекулярная биология и генетика. Толковый словарь.

• parity — (n.) 1570s, equality of rank or status, from M.Fr. parité, from L.L. paritas equality, from L. adj. par (gen. paris) equal (see PAIR (Cf. pair) (n.)). Meaning condition in which adversaries have equal resources is from 1955, originally in… …   Etymology dictionary

• parity — [n] equality, balance adequation, affinity, agreement, analogy, approximation, closeness, coequality, conformity, congruity, consistency, correspondence, equal terms, equivalence, equivalency, likeness, nearness, par, parallelism, paraphernalia,… …   New thesaurus

• parity — ► NOUN 1) equality or equivalence. 2) Mathematics the fact of being an even or an odd number. ORIGIN Latin paritas, from par equal …   English terms dictionary

• parity — parity1 [par′ə tē] n. pl. parities [Fr parité < L paritas < par, equal: see PAR1] 1. the state or condition of being the same in power, value, rank, etc.; equality 2. resemblance; similarity 3. equivalence in value of one currency expressed …   English World dictionary

• parity — For convertibles, level at which a convertible security s market price equals the aggregate value of the underlying common stock; value/worth of the convertible bond considered only as an equity instrument ( conversion ratio times common price).… …   Financial and business terms

• parity — parity1 /par i tee/, n. 1. equality, as in amount, status, or character. 2. equivalence; correspondence; similarity; analogy. 3. Finance. a. equivalence in value in the currency of another country. b. equivalence in value at a fixed ratio between …   Universalium

• parity —    In communications, a simple form of error checking that uses an extra or redundant bit after the data bits but before the stop bit or bits. Parity may be set as follows:    • Odd    Indicates that the sum of all the 1 bit is set to zero; if it …   Dictionary of networking