Definition of hypoid in English:

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Pronunciation: /ˈhʌɪpɔɪd/
(also hypoid gear)


A bevel wheel with teeth engaging with a spiral pinion mounted at right angles to the wheel’s axis, used to connect non-intersecting shafts in vehicle transmissions and other mechanisms.
Example sentences
  • Inside the diff, the hypoid ring-and-pinion gear is connected to the left and right half shafts via an electromagnetic clutch on each side.
  • Bevel and hypoid gears may be used to transmit power between shafts at practically any angle and speed.
  • The swivels, rear end, and transfer case needed hypoids and we used up all we had filling those chambers.


1920s: perhaps a contraction of hyperboloid.

For editors and proofreaders

Line breaks: hy¦poid

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