Related Words

Increasing Light: Term applied to the waxing Moon as it moves from the position of new Moon to full Moon and the visible portion grows larger.

Twilight: Often called dusk, it is the evening period of waning light from the time of sunset to dark. The time of increasing light in the morning is called dawn. Twilight ends in the evening or begin . . . View Full Definition

Lightfastness: No loss of color due to exposure to light, heat or weathering.

Lighting: The placement, type, direction, and brightness or dimness of lights used on stage. Often lighting can establish mood, highlight specific characters, actions, or scenes, or serve symbolic purposes.

Lighting Color: Light may be 'colored' by placing a filter or gelatin in front of a light source.

Lightfast: A pigments resistance to fading on long exposure to sunlight. Watercolors are rated lightfast on a scale of I-IV. I and II ratings are the most permanent.

Lighting Diffusion: The hardness or softness of a light source. Hard light casts a sharp, definite shadow.

Lightbox: Box of fluorescent tubes balanced for white light and covered with translucent glass or plastic. Used for viewing, registering or correcting film negatives and positives.

Lighten Up: Selling some part of a stock or bond position in a portfolio to realize capital gains or to losses or increase cash assets.

Lighter-Than-Air Craft (LTAC): Generally referring to powered blimps and dirigibles, but often also includes free balloons.