See Also: gravitational(medicine)
gravitational(dictionary)
gravitational(dictionary)
gravitational force(medicine)
gravitational ulcer(medicine)
gravitational units(medicine)

gravitational (iou)



gravitational adjective. M19.
[from GRAVITATION + -AL1.]
Of, pertaining to, or caused by gravitation.
gravitational constant the constant of proportionality in the equation relating the strength of the gravitational attaction between two bodies to their masses and their separation, equal to 6.671011 N m2 kg2 approx. (symbol G). gravitational lens Astronomy a region of space containing a massive body whose gravitational field acts like a lens on electromagnetic radiation. gravitational mass the mass of a body as measured by the force exerted on the body by a gravitational field. gravitational radiation gravitational waves (sense a below). gravitational system (of units) a system of units based on a fundamental unit of weight rather than a unit of mass. gravitational wave (a) a periodic variation in gravitational field-strength which is propagated through space; (b) = gravity wave s.v. GRAVITY.
gravitationally adverb L19.