Definition of dedendum in English:

dedendum

noun dɪˈdɛndəmdɪˈdɛndəm

Engineering

The radial distance from the pitch circle of a cogwheel or wormwheel to the bottom of the tooth space or groove.
〔工程〕齿高，齿根高。比较ADDENDUM
Compare with addendum
Example sentencesExamples
- Moderate scoring shows up as a characteristic wear pattern, often in patches on the addendum, dedendum, or both.
- 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.
- The base, standard pitch, addendum and dedendum circles are dashed, and the rack reference origin is highlighted.

Origin

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

Definition of dedendum in US English:

dedendum

noundɪˈdɛndəmdiˈdendəm

Engineering

The radial distance from the pitch circle of a cogwheel or worm wheel to the bottom of the tooth space or groove.
〔工程〕齿高，齿根高。比较ADDENDUM
Compare with addendum
Example sentencesExamples
- The dedendum of the spur gear must be greater than the addendum of the lantern gear to prevent interference.
- You do need a hob drawing which would have the addendum equal to the dedendum of the gear you are cutting.
- Gears have addendums and dedendums that are the amount of tooth above and below the pitch line.
- The base, standard pitch, addendum and dedendum circles are dashed, and the rack reference origin is highlighted.
- Moderate scoring shows up as a characteristic wear pattern, often in patches on the addendum, dedendum, or both.

Origin

Early 20th century: from Latin, ‘thing that can be surrendered’, neuter gerundive of dedere.

单词	dedendum
释义	Definition of dedendum in English: dedendum noun dɪˈdɛndəmdɪˈdɛndəm Engineering The radial distance from the pitch circle of a cogwheel or wormwheel to the bottom of the tooth space or groove. 〔工程〕齿高，齿根高。比较ADDENDUM Compare with addendum Example sentencesExamples Moderate scoring shows up as a characteristic wear pattern, often in patches on the addendum, dedendum, or both. 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. The base, standard pitch, addendum and dedendum circles are dashed, and the rack reference origin is highlighted. Origin Early 20th century: from Latin, 'thing that can be surrendered', neuter gerundive of dedere. Definition of dedendum in US English: dedendum noundɪˈdɛndəmdiˈdendəm Engineering The radial distance from the pitch circle of a cogwheel or worm wheel to the bottom of the tooth space or groove. 〔工程〕齿高，齿根高。比较ADDENDUM Compare with addendum Example sentencesExamples The dedendum of the spur gear must be greater than the addendum of the lantern gear to prevent interference. You do need a hob drawing which would have the addendum equal to the dedendum of the gear you are cutting. Gears have addendums and dedendums that are the amount of tooth above and below the pitch line. The base, standard pitch, addendum and dedendum circles are dashed, and the rack reference origin is highlighted. Moderate scoring shows up as a characteristic wear pattern, often in patches on the addendum, dedendum, or both. Origin Early 20th century: from Latin, ‘thing that can be surrendered’, neuter gerundive of dedere.
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