Parity

Noun

 * 1)  Equality; comparability of strength or intensity.
 * 2)  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.
 * 1)  The classification of an element of a set with parity into one of the two sets.
 * The particles' parities can switch at random.
 * 1)  Symmetry of interactions under spatial inversion.
 * 2)  In reversi, the last move within a given sector of the board.

Antonyms
chirality

Derived terms

 * parity bit

Noun

 * 1)  The number of times a woman has given birth.

Thesaurus
accordance, agreement, alikeness, alliance, analogy, aping, approach, approximation, asking price, assimilation, balance, bearish prices, bid price, book value, bullish prices, call price, closeness, closing price, coequality, coextension, community, comparability, comparison, conformity, congruence, congruity, consistency, copying, correspondence, decline, equality, equation, equilibrium, equipoise, equipollence, equiponderance, equity, equivalence, equivalency, evenness, face value, fixed price, flash price, flurry, flutter, high, identity, imitation, issue par, issue price, justice, levelness, likeness, likening, low, market price, market value, metaphor, mimicking, nearness, nominal value, offering price, opening price, par, par value, parallelism, poise, price, proportion, put price, quotation, quoted price, rally, resemblance, sameness, semblance, settling price, similarity, simile, similitude, simulation, stated value, swings, symmetry, uniformity

Etymology 1
From parité: <  paritas: < par:

Etymology 2
From paritas: < pario: