From Longman Dictionary of Contemporary Englishescape velocityesˈcape veˌlocity noun [countable, uncountable] TTSthe speed at which a rocket must travel in order to get into space
Examples from the Corpus
escape velocity• Even modest-sized impactors can blast atmospheric gases off of Mars at speeds above escape velocity.• In fact, it is traveling well above escape velocity.• Jupiter is a very massive planet, and its escape velocity is correspondingly high.• Some of the gases from the explosion and fireball may reach escape velocity.• As the star shrank, the gravitational field at the surface would become stronger and the escape velocity would increase.• A significant fraction of their water content can emerge from the explosion at a speed below the escape velocity of Mercury.• This critical speed is called the escape velocity.• As the radius of the star is reduced the escape velocity increases until eventually it reaches the velocity of light. 