noun🔗ShareA box containing a source of light and a white, translucent cover, used to view photographic transparencies."The photographer used lightboxes to carefully examine the details of the film negatives. "arttechnologymediadeviceelectronicsChat with AIVocabulary GamePractice Reading
noun🔗ShareA box containing fluorescent tubes or LED technology, used to treat people with seasonal affective disorder (SAD) and circadian rhythm disorders."During the dark winter months, many people use lightboxes to combat the symptoms of seasonal affective disorder. "medicinetechnologydevicephysiologybodyChat with AIVocabulary GamePractice Reading
noun🔗ShareA kind of pop-up that is overlaid across a web page while the rest of the content is dimmed."The website used lightboxes to display larger versions of the product photos when clicked. "computinginternettechnologyChat with AIVocabulary GamePractice Reading
noun🔗ShareA backbox."The artist used lightboxes to trace her drawings, making the lines brighter and clearer. "architecturebuildingutilitytechnologyChat with AIVocabulary GamePractice Reading
noun🔗ShareA device used in phreaking that indicates when a telephone line is in use by means of a light."Before telephone systems became fully digital, phreakers used lightboxes to detect when a phone line was in use, helping them avoid detection while making unauthorized calls. "technologyelectronicscommunicationdevicesignalChat with AIVocabulary GamePractice Reading
