dedendum

[ dih-den-duhm ]

noun

, Machinery.

, plural de·den·da [dih-, den, -d, uh].

1. (on a gear or rack) the radial distance between the pitch circle or line and the root circle or line. Compare addendum ( def 3a ).

Word History and Origins

Origin of dedendum¹

1900–05; < Latin: to be given up, gerund of dēdere, equivalent to dē- de- + -dere combining form of dare to give; addendum