Definition of parities:
(n) :
(uncountable) Equality; comparability of strength or intensity.
(n) :
(mathematics, countable) 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.
(n) :
(mathematics, countable) The classification of an element of a set with parity into one of the two sets.
(n) :
(computing) The count of one bits in a value, reduced to even or odd or zero or one.
(n) :
(physics, countable) Symmetry of interactions under spatial inversion.
(n) :
(medicine, countable) The number of delivered pregnancies reaching viable gestational age, usually between 20-28 weeks.