Word.ws English Dictionary

O-ring

O-ring noun: a circular gasket, usually made of rubber.

o-ring: a circular gasket, usually made of rubber
Image: Ahellwig, CC BY 2.5, via Wikimedia Commons

Noun

O-ring (plural O-rings)

  1. A circular gasket, usually made of rubber.
    • The O-rings of the Solid Rocket Boosters were not designed to erode.1986 June 6, Richard Feynman, “Personal observations on the reliability of the Shuttle”, in Presidential Commission on the Space Shuttle Challenger Accident, Report to the President
  2. A small metal ring used to connect two straps.

Forms of O-ring

pluralO-rings

Origin of O-ring

From O + ring.

Questions about O-ring

What does O-ring mean?
O-ring means a circular gasket, usually made of rubber.
What part of speech is O-ring?
O-ring is a noun.
What is the plural of O-ring?
The plural of O-ring is O-rings.

Words near O-ring in the dictionary

  1. o-machine
  2. o-mikuji
  3. o-mok-see
  4. o-o-a-a
  5. o-o-aa
  6. O-ring
  7. O-rings
  8. o-rite
  9. o-scope
  10. o-scopes
  11. O-shaped

Source and license

Adapted from Wiktionary: O-ring (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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Cite this entry: “O-ring.” Word.ws, https://word.ws/o-ring. Based on Wiktionary, CC BY-SA 4.0.