The quality of that which is weightless.
Condition in which there is no gravitational force acting on a body, either because gravitational force is canceled out by equal and opposite acceleration, or because the body is so far outside a planet's gravitational field that no force is exerted upon it.
Astronauts in space, though seemingly “weightless”, do not experience zero gravity because of the motion of their spacecraft.
1. Manque de pesanteur.
2. État oů l'on n'est pas sujet ŕ l'attraction de la gravitation.