Noun: weightlessness weyt-lus-nus
- The property of being comparatively small in weight
"the weightlessness of balsa wood";
- lightness
- (physics) a state of very low gravity, as found in sustained free fall, orbit or in interstellar space
"Astronauts conduct experiments in weightlessness aboard the International Space Station";
- microgravity
Type of: weight
Encyclopedia: Weightlessness