noun Date: 1962 any of five positions in the plane of a celestial system consisting of one massive body orbiting another at which the gravitational influences of the two bodies are approximately equal
LIBRATION POINT
Meaning of LIBRATION POINT in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012