rotation-inversion axis
[ roh-tey-shuh n in-vur-zhuh n, -shuh n ]
/ roʊˈteɪ ʃən ɪnˈvɜr ʒən, -ʃən /
noun Crystallography.
an axis of a crystal such that rotating about the axis and then inverting the crystal brings the crystal back to its original position.
Nearby words
rotation, rotation axis, rotation flap, rotation of axes, rotation vector, rotation-inversion axis, rotational, rotational molding, rotational nystagmus, rotational quantum number, rotative
Compare symmetry element.
Also called symmetry axis of rotary inversion.
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019