deadlight

noun
dead·​light | \ ˈded-ˌlīt How to pronounce deadlight (audio) \

Definition of deadlight

: a metal cover or shutter fitted to a port to keep out light and water

First Known Use of deadlight

1726, in the meaning defined above

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The first known use of deadlight was in 1726

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Cite this Entry

“Deadlight.” The Merriam-Webster.com Dictionary, Merriam-Webster Inc., https://www.merriam-webster.com/dictionary/deadlight. Accessed 19 January 2020.

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