norm
Concise Oxford English Dictionary © 2008 Oxford University Press:
norm/nɔːm/
▶noun
- 1 the usual, typical, or standard thing.
■ a required or acceptable standard: the norms of good behaviour.
- 2 Mathematics the sum of the squares of the real and imaginary components of a complex number, or the positive square root of this sum.
– origin C19: from L. norma ‘precept, rule, carpenter's square’.
'norm' also found in these Oxford entries:
below
- counterculture
- DIN
- for
- heterosexism
- intelligence quotient
- modify
- normal
- normalize
- normative
- standard
- under

