(quantum mechanics) The quantum theory of the gravitational field. / (quantum mechanics) The study of quantum fields in curved spacetime.

(physics) A fluctuation in spacetime caused by accelerating mass, which propagates as a wave at the speed of light. / (dated, proscribed) A gravity wave.

(astronomy) The action of a highly-massive object (such as a star, galaxy, or black hole) that acts as a gravitational lens and focuses light from a light source (such as another star or galaxy) that passes behind it as observed from the Earth.

(physics) The convection (carriage) of contents of a fluid, such as mass or heat, by means of currents induced in the fluid by buoyancy forces which are dependent on gravity acting upon density differences within the fluid.

plural of gravitational lens

plural of gravitational field

(physics) An empirical physical constant involved in the calculation of the gravitational attraction between objects with mass

Alternative form of gravity assist

Alternative form of gravity assist

(physics) A location where the quantities that are used to measure the gravitational field become infinite in a way that does not depend on the coordinate system.