"parity" in the noun sense
1. parity, para
obstetrics) the number of liveborn children a woman has delivered
"the parity of the mother must be considered"
"a bipara is a woman who has given birth to two children"
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
"parity is often used to check the integrity of transmitted data"
3. parity bit, parity, check bit
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. parity, conservation of parity, space-reflection symmetry, mirror symmetry
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
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