obstetrics The number of liveborn children a woman has delivered:
— The parity of the mother must be considered.

synonym: para.

Roget 17: similarity, resemblance, likeness, similitude, semblance; affinity, approximation, parallelism; agreement etc. 23; analogy, analogicalness^†; correspondence, homoiousia^†, parity.    connaturalness^†, connaturality^†; brotherhood, family likeness.    alliteration, rhyme, pun.    repetition etc. 104; sameness etc. (identity) 13; uniformity etc. 16; isogamy^†.    analogue; the like; match, pendant, fellow companion, pair, mate, twin, double, counterpart, brother, sister; one's second self, alter ego, chip of the old block, par nobile fratrum [Lat.], Arcades ambo^†, birds of a feather, et hoc genus omne [Lat.]; gens de meme famille [Fr.].    parallel; simile; type etc. (metaphor) 521; image etc. (representation) 554; photograph; close resemblance, striking resemblance, speaking resemblance, faithful likeness, faithful resemblance.    ... show more

Roget 27: equality, parity, coextension^†, symmetry, balance, poise; evenness, monotony, level.    equivalence; equipollence^†, equipoise, equilibrium, equiponderance^†; par, quits, a wash; not a pin to choose; distinction without a difference, six of one and half a dozen of the other; tweedle dee and tweedle dum [Lat.]; identity etc. 13; similarity etc. 17.    equalization, equation; equilibration, co-ordination, adjustment, readjustment.    drawn game, drawn battle; neck and neck race; tie, draw, standoff, dead heat.    match, peer, compeer, equal, mate, fellow, brother; equivalent.    ... show more

Polish: ciąża wieloraka, ciąża mnoga

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.

Dutch: pariteit

computer science A bit that is used in an error detection procedure in which a 0 or 1 is added to each group of bits so that it will have either an odd number of 1's or an even number of 1's; e.g., if the parity is odd then any group of bits that arrives with an even number of 1's must contain an error.

synonyms: check bit, parity bit.

Dutch: pariteitsbit
Polish: bit parzystości

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.

synonyms: conservation of parity, mirror symmetry, space-reflection symmetry.

Dutch: spiegelsymmetrie

Functional equality.

Polish: parytet