Definitions
1.nounA box containing a source of light and a white, translucent cover, used to view photographic transparencies.
2.nounA box containing fluorescent tubes or LED technology, used to treat people with seasonal affective disorder (SAD) and circadian rhythm disorders.
3.nounA kind of pop-up that is overlaid across a web page while the rest of the content is dimmed.
4.nounA backbox.
5.nounA device used in phreaking that indicates when a telephone line is in use by means of a light.