noun Date: 1928 a constant term used in the relativistic equations for gravity to represent a repulsive force which may account in part for the rate of expansion of the universe
COSMOLOGICAL CONSTANT
Meaning of COSMOLOGICAL CONSTANT in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012