noun Date: 1591 a configuration in which two celestial bodies (as the moon and the sun) have an angular separation of 90 degrees as seen from the earth, the process of finding a square equal in area to a given area
QUADRATURE
Meaning of QUADRATURE in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012