[roh-tey-shuh n in-vur-zhuh n, -shuh n] /roʊˈteɪ ʃən ɪnˈvɜr ʒən, -ʃən/
an axis of a crystal such that rotating about the axis and then inverting the crystal brings the crystal back to its original position.
[ak-seez] /ˈæk siz/ noun, Mathematics. 1. a process of replacing the axes in a Cartesian coordinate system with a new set of axes making a specified angle with and having the same origin as the original axes.
- Rotations per minute
revolutions per minute
- Rotation vector
rotation vector A vector quantity whose magnitude is proportional to the amount or speed of a rotation, and whose direction is perpendicular to the plane of that rotation (following the right-hand rule). Spin vectors, for example, are rotation vectors.
adjective 1. rotating or pertaining to rotation. 2. producing rotation. 3. happening in regular succession.