# symmetrical

[ si-me-tri-kuhl ]

/ sɪˈmɛ trɪ kəl /

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adjective

characterized by or exhibiting symmetry; well-proportioned, as a body or whole; regular in form or arrangement of corresponding parts.

Geometry.

- noting two points in a plane such that the line segment joining the points is bisected by an axis: Points (1, 1) and (1, −1) are symmetrical with respect to the x-axis.
- noting a set consisting of pairs of points having this relation with respect to the same axis.
- noting two points in a plane such that the line segment joining the points is bisected by a point or center: The points (1, 1) and (−1, −1) are symmetrical with respect to (0, 0).
- noting a set consisting of pairs of points having this relation with respect to the same center.

Usually symmetric .Mathematics.

- noting a square matrix that is equal to its transpose.
- noting a dyad or dyadic that is equal to its conjugate.
- noting a relation in which one element in relation to a second implies the second in relation to the first.

Botany.

- divisible into two similar parts by more than one plane passing through the center; actinomorphic.
- (of a flower) having the same number of parts in each whorl.

Chemistry.

- having a structure that exhibits a regular repeated pattern of the component parts.
- noting a benzene derivative in which three substitutions have occurred at alternate carbon atoms.

affecting corresponding parts simultaneously, as certain diseases.

## OTHER WORDS FOR symmetrical

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Also sym·met·ric [si-me-trik] /sɪˈmɛ trɪk/ .

## Origin of symmetrical

First recorded in 1745–55; symmetr(y) + -ical

## OTHER WORDS FROM symmetrical

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Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

## How to use symmetrical in a sentence

## British Dictionary definitions for symmetrical

symmetrical

/ (sɪˈmɛtrɪkəl) /

adjective

possessing or displaying symmetryCompare asymmetric

maths

- (of two points) capable of being joined by a line that is bisected by a given point or bisected perpendicularly by a given line or planethe points ( x, y ) and ( –x, –y ) are symmetrical about the origin
- (of a configuration) having pairs of points that are symmetrical about a given point, line, or planea circle is symmetrical about a diameter
- (of an equation or function of two or more variables) remaining unchanged in form after an interchange of two variablesx + y = z is a symmetrical equation

chem (of a compound) having a molecular structure in which substituents are symmetrical about the molecule

botany another word for isomerous

Also: symmetric (of a disease, infection, etc) affecting both sides of the body or corresponding parts, such as both legs

## Derived forms of symmetrical

symmetrically, adverbsymmetricalness, nounCollins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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