RETRODIRECTIVE


Meaning of RETRODIRECTIVE in English

/re'troh di rek"tiv, -duy-/ , adj. Optics.

(of a mirror, reflector, etc.) having three reflecting surfaces so oriented that a ray of light is reflected in a direction parallel but opposite to its original direction.

[ RETRO- + DIRECTIVE ]

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