rotation

Definition

• n. the act of rotating as if on an axis
• n. (mathematics) a transformation in which the coordinate axes are rotated by a fixed angle about the origin
• n. a single complete turn (axial or orbital)

Word forms

Plural

rotations

Example sentences

1. n.

   The rotation of the Earth causes day and night.

2. n.

   In physics class, we learned about the rotation of the planets around the sun.