1. n.1 equality or equal status, esp. as regards status or pay.
2 parallelism or analogy (parity of reasoning).
3 equivalence of one currency with another; being at par.
4 (of a number) the fact of being even or odd.
5 Physics (of a quantity) the fact of changing its sign or remaining unaltered under a given transformation of coordinates etc.
Etymology: F parit{eacute} or LL paritas (as PAR(1)) 2. n. Med.
1. the fact or condition of having borne children.
2 the number of children previously borne.
Etymology: formed as -PAROUS + -ITY