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light trap

noun

Definition of light trap

1 : a device that allows movement of a sliding part or passage of a person (as into a darkroom) but excludes light
2 : a device for collecting or destroying insects that consists of a bright light in association with a trapping or killing medium

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First Known Use of light trap

1906

in the meaning defined at sense 1

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  1. See words that rhyme with light trap Britannica.com: Encyclopedia article about light trap

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