The height by which the tooth of a gear projects beyond (outside for external, or inside for internal) the standard pitch circle or pitch line.
Something to be added; especially text added as an appendix or supplement to a document.
A postscript.
In preparation for the main matter; initial, introductory, preparatory.
Any of a series of sports events that determine the finalists
A preparation for a main matter; an introduction.
A relatively minor contest that precedes a major one, especially in boxing