Gravity-hinge
noun
1.
a hinge closing automatically by means of gravity.
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noun 1. a railroad depending partly on the force of gravity for motive power.
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noun 1. a scale giving the relative density of fluids See API gravity scale
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noun 1. Astronomy, Physics. . 2. a wave created by the action of gravity on local variations in the density of a stratified fluid, as the atmosphere, or at an interface between fluids of different density, as a liquid and a gas. noun (physics) 1. a wave propagated in a gravitational field, predicted to occur […]