- Gravity platform
noun 1. (in the oil industry) a drilling platform that rests directly on the sea bed and is kept in position by its own weight; it is usually made of reinforced concrete
noun 1. a railroad depending partly on the force of gravity for motive power.
- Gravity scale
noun 1. a scale giving the relative density of fluids See API gravity scale
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 […]