Simple Definition of dimension
: the length, width, height, or depth of something : a measurement in one direction (such as the distance from the ceiling to the floor in a room)
: the amount or number of things that something affects or influences
: a part of something
Full Definition of dimension
1 a (1) : measure in one direction; specifically : one of three coordinates determining a position in space or four coordinates determining a position in space and time (2) : one of a group of properties whose number is necessary and sufficient to determine uniquely each element of a system of usually mathematical entities (as an aggregate of points in real or abstract space) <the surface of a sphere has two dimensions>; also : a parameter or coordinate variable assigned to such a property <the three dimensions of momentum> (3) : the number of elements in a basis of a vector space b : the quality of spatial extension : magnitude, size c : a lifelike or realistic quality d : the range over which or the degree to which something extends : scope —usually used in plural e : one of the elements or factors making up a complete personality or entity : aspect
2 obsolete : bodily form or proportions
3 : any of the fundamental units (as of mass, length, or time) on which a derived unit is based; also : the power of such a unit
4 : wood or stone cut to pieces of specified size
5 : a level of existence or consciousness
Examples of dimension in a sentence
She carefully measured each dimension of the room.
The social dimensions of the problem must also be taken into account.
Origin of dimension
Middle English, from Anglo-French, from Latin dimension-, dimensio, from dimetiri to measure out, from dis- + metiri to measure — more at measure
First Known Use: 14th century
DIMENSION Defined for Kids
Definition of dimension for Students
: the length, width, or height of something
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Thesaurus: All synonyms and antonyms for "dimension" Medical Dictionary: Definition of "dimension" Spanish Central: Translation of "dimension" Nglish: Translation of "dimension" for Spanish speakers Britannica English: Translation of "dimension" for Arabic speakers Britannica.com: Encyclopedia article about "dimension"
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