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noun

lightbox

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Lightbox (noun) means a box with a light inside and a pale see-through top, used for looking at photographic slides.

noun
1
A box with a light inside and a pale see-through top, used for looking at photographic slides.
2
A box fitted with fluorescent or LED lights, used to treat sufferers of seasonal affective disorder (SAD) and disorders of the body clock.
3
(computing) A window that appears over a webpage while the rest of the page is dimmed.
4
(informal) A gadget that uses a light to show when a phone line is in use.
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Etymology

From light + box. In the Internet sense, originally the name of one specific technique.

Frequently asked questions

What is the meaning of lightbox?
"lightbox" (noun) means a box with a light inside and a pale see-through top, used for looking at photographic slides.
What are the different meanings of lightbox?
"lightbox" has 3 main meanings: 1. A box with a light inside and a pale see-through top, used for looking at photographic slides; 2. A box fitted with fluorescent or LED lights, used to treat sufferers of seasonal affective disorder (SAD) and disorders of the body clock; 3. (computing) A window that appears over a webpage while the rest of the page is dimmed.
Definitions from Wiktionary, CC BY-SA 4.0 · etymology from Wiktionary