rotation

noun ! Definition from WordNet 3.1, Princeton University. Pronunciation from Wiktionary, via Kaikki.org. More about rotation at Wordnik → Where our words come from →

1. The act of rotating as if on an axis.

   the rotation of the dancer kept time with the music

2. (mathematics) a transformation in which the coordinate axes are rotated by a fixed angle about the origin.
3. A single complete turn (axial or orbital).

   the plane made three rotations before it crashed