# symmetry

## sym·me·try

*noun*\ˈsi-mə-trē\

: 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

*plural*

**sym·me·tries**

## Full Definition of *SYMMETRY*

**:**balanced proportions;

*also*

**:**beauty of form arising from balanced proportions

**:**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

**:**a rigid motion of a geometric figure that determines a one-to-one mapping onto itself

**:**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*

- the
*symmetry*of the human body - The building has perfect
*symmetry*.

## Origin of *SYMMETRY*

*symmetria,*from Greek, from

*symmetros*symmetrical, from

*syn-*+

*metron*measure — more at measure

## Related to *SYMMETRY*

- Synonyms
- balance, coherence, concinnity, consonance, consonancy, orchestration, proportion, harmony, symphony, unity

- Antonyms
- asymmetry, discordance, disproportion, disunity, imbalance, incoherence, violence

## Other Mathematics and Statistics Terms

## sym·me·try

*noun*\ˈsim-ə-trē\

*(Medical Dictionary)*

*plural*

**sym·me·tries**

## Medical Definition of *SYMMETRY *

**:**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

**:**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

## symmetry

*noun*

*(Concise Encyclopedia)*

In geometry, the property by which the sides of a figure or object reflect each other across a line (axis of symmetry) or surface; in biology, the orderly repetition of parts of an animal or plant; in chemistry, a fundamental property of orderly arrangements of atoms in molecules or crystals; in physics, a concept of balance illustrated by such fundamental laws as the third of Newton's laws of motion. Symmetry in nature underlies one of the most fundamental concepts of beauty. It connotes balance, order, and thus, to some, a type of divine principle.

## Learn More About *SYMMETRY*

## Browse

Previous Word in the Dictionary: symmetrophobia

All Words Near: symmetry

**Ask The Editor** Videos

## Seen & Heard

What made you want to look up *symmetry*? Please tell us where you read or heard it (including the quote, if possible).