Skip to definition.
Get the FREE one-click dictionary software for Windows or the iPhone/iPad and Android apps

Noun: weightlessness  weyt-lus-nus
  1. The property of being comparatively small in weight
    "the weightlessness of balsa wood";
    - lightness
  2. (physics) a state of very low gravity, as found in sustained free fall, orbit or in interstellar space
    - microgravity

Type of: weight

Encyclopedia: Weightlessness