- a thing to be added; an addition.
- an appendix to a book.
- Machinery.
- the radial distance between the tip of a gear tooth and the pitch circle of a gear or the pitch line of a rack.
- an imaginary circle touching the tips of the teeth on a gear.
- something added; an addition
- a supplement or appendix to a book, magazine, etc
- the radial distance between the major and pitch cylinders of an external screw thread
- the radial distance between the pitch circle and tip of a gear tooth
