noun
tidal friction
Scientific term in astronomy and geophysics referring to the frictional effect of tides on a planet's rotation.
潮汐摩擦によって地球の自転は徐々に遅くなっている。
Due to tidal friction, the Earth's rotation is gradually slowing down.
Compound of 潮汐 (tide) and 摩擦 (friction), a direct calque of the English term.