adjective Etymology: Latin pro- forward + English -grade (as in retrograde) Date: 1967 having or being a direction of rotation or revolution that is counterclockwise as viewed from the north pole of the sky or a planet
PROGRADE
Meaning of PROGRADE in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012