Definition of symmetry
symmetries
1 : balanced proportions; also : beauty of form arising from balanced proportions
2 : the property of being symmetrical; especially : correspondence in size, shape, and relative position of parts on opposite sides of a dividing line or median plane or about a center or axis — compare bilateral symmetry, radial symmetry
3 : a rigid motion of a geometric figure that determines a onetoone mapping onto itself
4 : the property of remaining invariant under certain changes (as of orientation in space, of the sign of the electric charge, of parity, or of the direction of time flow) —used of physical phenomena and of equations describing them
Examples of symmetry in a sentence
the symmetry of the human body
The building has perfect symmetry.
Origin and Etymology of symmetry
Latin symmetria, from Greek, from symmetros symmetrical, from syn + metron measure — more at measure
First Known Use: 1563
Other Mathematics and Statistics Terms
SYMMETRY Defined for English Language Learners
symmetry
playDefinition of symmetry for English Language Learners

: the quality of something that has two sides or halves that are the same or very close in size, shape, and position : the quality of having symmetrical parts
SYMMETRY Defined for Kids
symmetry
playDefinition of symmetry for Students
symmetries
: close agreement in size, shape, and position of parts that are on opposite sides of a dividing line or center : an arrangement involving regular and balanced proportions <the symmetry of the human body>
Medical Dictionary
symmetry
playMedical Definition of symmetry
symmetries
1: correspondence in size, shape, and relative position of parts on opposite sides of a dividing line or median plane or about a center or axis—see bilateral symmetry, radial symmetry
2: the property of remaining invariant under certain changes (as of orientation in space, of the sign of the electric charge, of parity, or of the direction of time flow)—used of physical phenomena and of equations describing them
Learn More about symmetry

Thesaurus: All synonyms and antonyms for symmetry Spanish Central: Translation of symmetry Nglish: Translation of symmetry for Spanish speakers Britannica English: Translation of symmetry for Arabic speakers Britannica.com: Encyclopedia article about symmetry
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