n. 光亮度, (颜色的)浅淡, 轻率, 轻佻, 轻浮, 轻盈, 轻松, 轻巧, 精巧, 优美

[计] 亮度

[化] 光亮度

Lightness \Light"ness\, n. [From {Light} bright.]
1. Illumination, or degree of illumination; as, the lightness
of a room. --Chaucer.

2. Absence of depth or of duskiness in color; as, the
lightness of a tint; lightness of complexion.


Lightness \Light"ness\, n. [From {Light} not heavy.]
The state, condition, or quality, of being light or not
heavy; buoyancy; levity; fickleness; nimbleness; delicacy;
grace.

Syn: Levity; volatility; instability; inconstancy;
unsteadiness; giddiness; flightiness; airiness; gayety;
liveliness; agility; nimbleness; sprightliness;
briskness; swiftness; ease; facility.