Определение gravitational lens в Английский Язык Английский Язык словарь
A massive body that produces distorted, magnified or multiple images of more distant objects when its gravitational field bends the path of light rays
A massive celestial object, such as a galaxy, whose gravity bends and focuses the light of a more distant object, resulting in a magnified, distorted, or multiple image of the original light source for a distant observer