Definition of


  1. (noun, attribute) functional equality
  2. (noun, cognition) (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
  3. (noun, quantity) (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
  4. (noun, linkdef) (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
  5. (noun, state) (obstetrics) the number of liveborn children a woman has delivered
    a bipara is a woman who has given birth to two children

via WordNet, Princeton University

Alternate forms of Parity

Hyponyms: evenness, oddness

Hypernyms: bit, conservation, equivalence, gestation, maternity, mathematical relation, pregnancy

Origin of the word Parity

  1. 1572, "equality of rank or status," from M.Fr. parit?, from L.L. paritas "equality," from L. adj. par (gen. paris) "equal" (see pair (n.)). Meaning "condition in which adversaries have equal resources" is from 1955, originally in ref. to the U.S.A. and the U.S.S.R. more

via Online Etymology Dictionary, ©2001 Douglas Harper

Note: If you're looking to improve your vocabulary right now, we highly recommend Ultimate Vocabulary Software.

Word of the Moment

Trygve Lie

Norwegian diplomat who was the first Secretary General of the United Nations (1896-1968)