noun Date: circa 1889 any of the cosines of the three angles between a directed line in space and the positive direction of the axes of a rectangular Cartesian coordinate system
DIRECTION COSINE
Meaning of DIRECTION COSINE in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012