noun Date: 1933 a spot of light moved over a surface (as one bearing printing or an image) so that light reflected from or transmitted by different parts of the surface is translated into electrical signals for transmission (as in television or computers)
FLYING SPOT
Meaning of FLYING SPOT in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012