RADIAN


Meaning of RADIAN in English

/ray"dee euhn/ , n. Math.

the measure of a central angle subtending an arc equal in length to the radius: equal to 57.2958°. Abbr.: rad

[ 1875-80; RADI(US) + -AN ]

Random House Webster's Unabridged English dictionary.      Полный английский словарь Вебстер - Random House .