parity

parity1
[ˈparɪti]
noun
[mass noun]
  1. the state or condition of being equal, especially as regards status or pay
    （尤指地位、工资方面）相同，相等
    parity of incomes between rural workers and those in industrial occupations.
    农业工人和在工业部门任职者的收入相等。
    ■the value of one currency in terms of another at an established exchange rate
    平价（指不同货币的法定汇率相等）
  2. (Mathematics)(of a number) the fact of being even or odd
    (数)（数字）奇偶性
    ■(Physics)the property of a spatial wave equation that either remains the same (even parity) or changes sign (odd parity) under a given transformation
    (物理)正（或负）宇称
    ■(Physics)the value of a quantum number corresponding to this property
    (物理)宇称性
    ■(Computing)a function whose being even (or odd) provides a check on a set of binary values
    (计算机)奇偶校验
语源
  1. late 16th cent.: from late Latin paritas, from par 'equal'
parity2
[ˈparɪti]
noun
  1. [mass noun](Medicine)the fact or condition of having borne children
    (医)经产（状况）
    ■the number of children previously borne
    已产子女数
    very high parity (six children or more).
    非常高的产次（六个子女以上）。
语源
  1. late 19th cent.: from parous 'having borne offspring' (back-formation from adjectives ending in -parous) + -ity
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