立体角密度

りったいかくみつど

noun

•

(optics) radiance, sterance, radiant sterance

立	stand up, rise, set up, erect
体	body, substance, object, reality, counter for images
角	angle, corner, square, horn, antlers
密	secrecy, density (pop), minuteness, carefulness
度	degrees, occurrence, time, counter for occurrences, consider, attitude