parity

1. Equality; comparability of strength or intensity. (uncountable)
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. (countable) · Parity is always preserved in such operations.
3. The classification of an element of a set with parity into one of the two sets. (countable) · The particles' parities can switch at random.
4. The count of one-valued bits in a value, reduced to even or odd or zero or one. (countable, uncountable)
5. Symmetry of interactions under spatial inversion. (countable)
6. In reversi, the last move within a given sector of the board. (countable)
7. Resemblance; analogy. (countable, uncountable)

Plural parities