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# symmetrical

### or symmetric

[si-me-tri-kuh l or si-me-trik] /sɪˈmɛ trɪ kəl or sɪˈmɛ trɪk/
1.
characterized by or exhibiting symmetry; well-proportioned, as a body or whole; regular in form or arrangement of corresponding parts.
2.
Geometry.
1. 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.
2. noting a set consisting of pairs of points having this relation with respect to the same axis.
3. 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).
4. noting a set consisting of pairs of points having this relation with respect to the same center.
3.
Often, symmetric. Mathematics.
1. noting a square matrix that is equal to its transpose.
2. noting a dyad or dyadic that is equal to its conjugate.
3. noting a relation in which one element in relation to a second implies the second in relation to the first.
4.
Botany.
1. divisible into two similar parts by more than one plane passing through the center; actinomorphic.
2. (of a flower) having the same number of parts in each whorl.
5.
Chemistry.
1. having a structure that exhibits a regular repeated pattern of the component parts.
2. noting a benzene derivative in which three substitutions have occurred at alternate carbon atoms.
6.
affecting corresponding parts simultaneously, as certain diseases.
Origin of symmetrical
1745-1755
First recorded in 1745-55; symmetr(y) + -ical
Related forms
symmetricalness, noun
Synonyms
1. balanced, orderly, regular, congruent.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for symmetrically
Historical Examples
• The porters arranged them symmetrically, tier by tier, on the vehicles.

Emile Zola
• It is divided into four bays, and is not symmetrically placed to the church.

Alexander Van Millingen
• In drying skins, stretch them symmetrically and dry in the shade.

Leon Luther Pray
• This joint should be finished as symmetrically as possible and wiped while the solder is hot.

Samuel Dibble
• These are often symmetrically disposed, either on the poles of the dimensive axes or in crossed diagonal planes.

• On the outer surface often arise radial spines, symmetrically disposed either in dimensive planes or in diagonal planes.

• At one end of this plain the mounds were symmetrically arranged.

Anne Cary Maudslay
• All these rows are symmetrically divided by the median line.

• The hydroplanes are symmetrically disposed on two sides of the vessel.

Simon Lake
• A point of view by no means contrary, yet symmetrically opposed, to his.

Jules Michelet
British Dictionary definitions for symmetrically

## symmetrical

/sɪˈmɛtrɪkəl/
1.
possessing or displaying symmetry Compare asymmetric
2.
(maths)
1. (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 plane: the points (x, y) and (–x, –y) are symmetrical about the origin
2. (of a configuration) having pairs of points that are symmetrical about a given point, line, or plane: a circle is symmetrical about a diameter
3. (of an equation or function of two or more variables) remaining unchanged in form after an interchange of two variables: x + y = z is a symmetrical equation
3.
(chem) (of a compound) having a molecular structure in which substituents are symmetrical about the molecule
4.
(botany) another word for isomerous
5.
Also symmetric. (of a disease, infection, etc) affecting both sides of the body or corresponding parts, such as both legs
Derived Forms
symmetricalness, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for symmetrically

## symmetrical

1570s (implied in symmetrically), from symmetry + -ical.

Online Etymology Dictionary, © 2010 Douglas Harper
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### Word Value for symmetrically

25
28
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