Found 1 items, similar to addendum circle.
English → English (gcide) Definition: Addendum circle Addendum \Ad*den"dum\, n.; pl. Addenda. [L., fr. addere to add.] A thing to be added; an appendix or addition. [1913 Webster] Addendum circle (Mech.), the circle which may be described around a circular spur wheel or gear wheel, touching the crests or tips of the teeth. --Rankine. [1913 Webster]