Definition of dedendum in English:

dedendum

Line breaks: de|den¦dum
Pronunciation: /dɪˈdɛndəm
 
/

noun

Engineering
  • The radial distance from the pitch circle of a cogwheel or wormwheel to the bottom of the tooth space or groove. Compare with addendum.
    More example sentences
    • Gears have addendums and dedendums that are the amount of tooth above and below the pitch line.
    • You do need a hob drawing which would have the addendum equal to the dedendum of the gear you are cutting.
    • The dedendum of the spur gear must be greater than the addendum of the lantern gear to prevent interference.

Origin

early 20th century: from Latin, 'thing that can be surrendered', neuter gerundive of dedere.

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a small amount; a little