(Agriculture) Action d'éclaircir, de rendre moins serré, moins dense.
ETYM Latin illuminatio: cf. French illumination.
The degree of visibility of one's environment.
The brightness or intensity of light falling on a surface. It depends upon the brightness, distance, and angle of any nearby light sources. The SI unit is the lux.
1. Apparatus for supplying artificial light effects for the stage or a film.
2. The craft of providing artificial light