O-ring
nounEtymology From O + ring.
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
Fashion, Lifestyle A small metal ring used to connect two straps.