parity
Equality; comparability of strength or intensity.
Other meanings
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.
The classification of an element of a set with parity into one of the two sets.
Where this comes from
This definition is adapted from “parity” on Wiktionary, by its contributors, published under CC BY-SA 4.0. This page is published under the same licence.