# symmetry

- the correspondence in size, form, and arrangement of parts on opposite sides of a plane, line, or point; regularity of form or arrangement in terms of like, reciprocal, or corresponding parts.
- the proper or due proportion of the parts of a body or whole to one another with regard to size and form; excellence of proportion.
- beauty based on or characterized by such excellence of proportion.
- Mathematics.
- a geometrical or other regularity that is possessed by a mathematical object and is characterized by the operations that leave the object invariant: A circle has rotational symmetry and reflection symmetry.
- a rotation or translation of a plane figure that leaves the figure unchanged although its position may be altered.

- Physics. a property of a physical system that is unaffected by certain mathematical transformations as, for example, the work done by gravity on an object, which is not affected by any change in the position from which the potential energy of the object is measured.

## Origin of symmetry

## Synonyms for symmetry

See more synonyms for on Thesaurus.com## Antonyms for symmetry

## Related Words for symmetry

similarity, harmony, rhythm, equilibrium, correspondence, finish, equality, form, equivalence, agreement, order, regularity, evenness, arrangement, balance, conformity, equipoise, centrality, proportionality## Examples from the Web for symmetry

### Contemporary Examples of symmetry

But, he says, what ultimately makes a hat look good on a person is the symmetry of the crown of their head to their jaw line.

In a nice bit of symmetry, 56% of Democrats said that Bush should be impeached in July of 2007, according to a Rasmussen survey.

The symmetry of their experiences only made her more determined to continue her journey.

At that point, with a loss of symmetry in the power provided by the engines, the airplane banks sharply and dives, into the water.

“Symmetry, both front-to-back and side-to-side, helps us function every day and prevents injuries,” says Sakhrani.

### Historical Examples of symmetry

I do not think those top-gallant-sails have the symmetry of the canvas of a ship-of-war.

Homeward BoundJames Fenimore Cooper

Symmetry is the opposition of equal quantities to each other.

Modern Painters Volume II (of V)John Ruskin

Look at it generally, and it is all symmetry and arrangement.

Modern Painters Volume I (of V)John Ruskin

Lastly, Variety: Variety is never so conspicuous, as when it is united with symmetry.

Modern Painters Volume I (of V)John Ruskin

There are three criteria of goodness—beauty, symmetry, truth.

PhilebusPlato

## symmetry

- similarity, correspondence, or balance among systems or parts of a system
- maths an exact correspondence in position or form about a given point, line, or planeSee symmetrical (def. 2)
- beauty or harmony of form based on a proportionate arrangement of parts
- physics the independence of a property with respect to direction; isotropy

## Word Origin for symmetry

## Word Origin and History for symmetry

1560s, "relation of parts, proportion," from Latin symmetria, from Greek symmetria "agreement in dimensions, due proportion, arrangement," from symmetros "having a common measure, even, proportionate," from syn- "together" (see syn-) + metron "meter" (see meter (n.2)). Meaning "harmonic arrangement of parts" first recorded 1590s. Symmetrophobia is from 1809, supposed to be evident in Egyptian temples and Japanese art.

## symmetry

(sĭm′ĭ-trē)- Exact correspondence of form and constituent configuration on opposite sides of a dividing line or plane or about a center or an axis.

## symmetry

- An exact matching of form and arrangement of parts on opposite sides of a boundary, such as a plane or line, or around a central point or axis.
- Physics See invariance.