proper time
Physics and Mathematics
noun
The time interval between two events in space–time as measured by a (hypothetical) clock travelling between the two events; time as measured by an observer's own clock.
Origin
Early 20th century. After German Eigenzeit.
- rocket apparatus
- rocket astronomy
- rocket bird
- rocket bomb
- rocket booster
- rocket car
- rocket chamber
- rocketeer
- rocketeering
- rocket engine
- rocketer
- rocket flyer
- rocket frame
- rocket fuel
- rocket gun
- rocket harpoon
- rocket jet
- rocket larkspur
- rocket launcher
- rocket line
- rocket man
- rocket mortar
- rocket motor
- rocket net
- rocket-netting