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/sɪˈmɛ trɪ kəl/
characterized by or exhibiting symmetry; well-proportioned, as a body or whole; regular in form or arrangement of corresponding parts.
noting two points in a plane such that the line segment joining the points is bisected by an axis:
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:
are symmetrical with respect to
noting a set consisting of pairs of points having this relation with respect to the same center.
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.
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.
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.
balanced, orderly, regular, congruent.
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for
possessing or displaying symmetry
(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
(of a configuration) having pairs of points that are symmetrical about a given point, line, or plane
a 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 variables
x + y = z is a symmetrical equation
) (of a compound) having a molecular structure in which substituents are symmetrical about the molecule
another word for
(of a disease, infection, etc) affecting both sides of the body or corresponding parts, such as both legs
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Word of The Day
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