normal
adjectiveDefinition of normal
(Entry 1 of 3)
1a
: conforming to a type, standard, or regular pattern
normal working hours He had a normal childhood. the effect of normal aging
b
: according with, constituting, or not deviating from a norm, rule, or principle
The normal way to pluralize a noun is by adding -s.
2
: occurring naturally
normal immunity
3a
: of, relating to, or characterized by average intelligence or development
IQs within the normal range
b
: free from mental illness : mentally sound
symptoms of paranoia in otherwise normal persons
c
: not associated
normal molecules
d
: having a straight-chain structure
normal butyl alcohol
5
: perpendicular
especially
: perpendicular to a tangent (see tangent entry 1 sense 3) at a point of tangency
6
of a subgroup
: having the property that every coset produced by operating on the left by a given element is equal to the coset produced by operating on the right by the same element
7
: relating to, involving, or being a normal curve or normal distribution
normal approximation to the binomial distribution
8
of a matrix
: having the property of commutativity under multiplication by the transpose of the matrix (see matrix sense 5a) each of whose elements is a conjugate (see conjugate entry 1 sense 2b) complex number with respect to the corresponding element of the given matrix
normal
nounDefinition of normal (Entry 2 of 3)
1
: a form or state regarded as the norm : standard
2
: one that is normal
3a
: a normal line
b
: the portion of a normal line to a plane curve between the curve and the x-axis
Normal
geographical nameDefinition of Normal (Entry 3 of 3)
town north of Bloomington in central Illinois population 52,497
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