symmetrical : Idioms & Phrases
bilaterally symmetrical
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adjective capable of division into symmetrical halves by only one longitudinal plane passing through the axis
zygomorphous; zygomorphic.
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adjective satellite having identical parts on each side of an axis
bilaterally symmetric; bilateral; isobilateral.
WordNet
radially symmetrical
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adjective satellite having a symmetrical arrangement of radiating parts about a central point
centrosymmetric.
WordNet
Skew symmetrical determinant
(Alg.) , a determinant in which the elements in each column of the matrix are equal to the elements of the corresponding row of the matrix with the signs changed, as in (1), below.