- light trap
- noun
1.a. : a passageway (as for a photographic darkroom) provided with double doors, curtains, or bends to allow passage of a person while excluding lightb. : a device (as for a photographic apparatus) that allows free passage of air or movement of a sliding part but excludes light — called also light lock2. : a device for collecting or destroying insects that consists of a bright light in association with a suitable trapping or killing medium
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light trap nounAny mechanical arrangement which permits movement while excluding light, such as the doors and partitions providing access to a darkroom• • •Main Entry: ↑light* * *
light trap,a device for trapping insects by means of a mercury vapor lamp or other light source that attracts insects.* * *
n.1) Zoology an illuminated trap for attracting and catching nocturnal animals, esp. moths and other flying insects2) Photography a device for excluding light from a darkroom without preventing entry into it
Useful english dictionary. 2012.