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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.
Recent Examples of symmetry from the Web

There is an element of karmic symmetry to the accusation, as Mac Donald insists cops are at greater risk of harm by critics agitated by Black Lives Matter.

Given the symmetry between the new images, it’s safe to guess that photographer Awol Erizku—the artist behind the pregnancy announcement series—shot Sir and Rumi’s Instagram debut as well.

On another side of the museum is Palindrome Park, an exhibition created by local artist Francesco Lo Castro that explores concepts of symmetry and harmony.

O’Day hits milestones: Reliever Darren O’Day hit a pair of career milestones Sunday in a moment of symmetry.

Although the film's conclusion may be a bit too neat, there's a reassuring symmetry to the narrative's optimistic resolution.

In our July issue, Kattan shared some of her goto brow tricks with Allure. Achieve perfect symmetry.

In the often unpredictable world of the NBA, there is some symmetry in Markelle Fultz and Ben Simmons likely becoming teammates as pros.

There is appalling symmetry in the fact that James T. Hodgkinson III of Belleville, Ill., tried to massacre baseballplaying Republican lawmakers shortly after the first anniversary of the deadliest mass shooting in modern U.S. history.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'symmetry.' Views expressed in the examples do not represent the opinion of MerriamWebster or its editors. Send us feedback.
Origin and Etymology of symmetry
Latin symmetria, from Greek, from symmetros symmetrical, from syn + metron measure — more at measure
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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