Definitions  normal 
 noun
 (geometry) A line or vector that is perpendicular to another.
adjective
 According to norms or rules.
 Organize the data into third normal form.
 Usual; ordinary
 Felicia baked the bread the normal way.
 Healthy; not sick or ill
 John is feeling normal again.
 Pertaining to a school to teach teachers how to teach.
 My grandmother attended Mankato State Normal School.
 (informal, pejorative towards homosexuals) Heterosexual.
 We don't like your sort around here  this bar is for normal people.
 (chemistry) of, relating to, or being a solution containing one equivalent weight of solute per litre of solution.
 (physics) (Of a mode in an oscillating system) In which all parts of an object vibrate at the same frequency; See w:normal mode, normal mode
 (geometry) Perpendicular to a tangent line or derivative of a surface in Euclidean space.
 The interior normal vector of a ideal perfect sphere will always point toward the center, and the exterior normal vector directly away, and both will always be colinear with the ray whose' tip ends at the point of intersection, which is the intersection of all three sets of points.
 (algebra) (Of a subgroup) whose cosets form a group
 (algebra) (Of a field extension of a field K) which is the splitting field of a family of polynomials in K
 (probability theory) (Of a distribution) which has a very specific bell curve shape
 (complex analysis) (Of a family of continuous functions) which is precompact
 (set theory) (Of a function from the ordinals to the ordinals) which is strictly monotonically increasing and continuous with respect to the order topology
 (linear algebra) (Of a matrix) which commutes with its conjugate transpose
 (functional analysis) (Of a Hilbert space operator) which commutes with its adjoint
 (category theory) (Of an epimorphism) which is the cokernel of some morphism
 (category theory) (Of a monomorphism) which is the kernel of some morphism
 (category theory) (Of a morphism) which is a normal epimorphism or a normal monomorphism
 (category theory) (Of a category) in which every monomorphism is normal
 (Of a real number) whose digits, in any base representation, enjoy a uniform distribution
 (topology) (Of a topology) in which disjoint closed sets can be separated by disjoint neighborhoods
Etymology: From Latin normalis.
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Full Definition of normal
 
