weightlessness
absence of stress and strain resulting from externally applied mechanical contact-forces, typically normal forces (from floors, seats, beds, scales, etc.)
en-GB/ˈweɪtləsnəs/
en-US/ˈweɪtləsnəs/
absence of stress and strain resulting from externally applied mechanical contact-forces, typically normal forces (from floors, seats, beds, scales, etc.)