norm
/nɔːm/noun
1
- (the norm) something that is usual, typical, or standard惯例, 典范：
strikes were the norm.
罢工曾是惯例做法。
1.1
- （一般作norms）a standard or pattern, especially of social behaviour, that is typical or expected of a group（尤指社会行为的）准则, 规范：
the norms of good behaviour in the Civil Service.
行政部门的良好行为规范。
1.2
- a required standard; a level to be complied with or reached标准：
as modifier the 7% pay norm had been breached again.7％的付款标准又一次被突破。
2
- Mathematics【数】the product of a complex number and its conjugate, equal to the sum of the squares of its real and imaginary components, or the positive square root of this sum模方。
2.1
- an analogous quantity used to represent the magnitude of a vector范数。
词源
early 19th cent.: from Latin norma 'precept, rule, carpenter's square'.