|a screen or mat covered with a dark material for shielding a camera lens from excess light or glare.|
|a chattering or flighty, light-headed person.|
|1.||readily understood; clear|
|2.||shining or glowing|
|3.||psychiatry of or relating to a period of normality between periods of insane or irresponsible behaviour|
|[C16: from Latin lūcidus full of light, from lūx light]|
lucidity lu·cid·i·ty (l&oomacr;-sĭd'ĭ-tē)
Clarity, especially mental clarity.