an imaginary line through a crystal about which the crystal may be rotated a specified number of degrees and be brought back to its original position.
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Also called axis of symmetry, symmetry axis of rotation.
Compare symmetry element.
Origin of rotation axis
First recorded in 1900–05
Words nearby rotation axis
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020