rotoflection axis

noun
ro·​to·​flec·​tion axis | \ ¦rōtō¦flekshən-\

Definition of rotoflection axis

: a compound symmetry element that requires identity of the structure and form of a crystal with its former configuration after a combination of rotation of 60, 90, 120, or 180 degrees with reflection across the plane normal to the axis

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History and Etymology for rotoflection axis

rotoflection from roto- + flection

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