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deadlight

[ ded-lahyt ]
/ ˈdɛdˌlaɪt /
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noun Nautical.

a strong shutter able to be screwed against the interior of a porthole in heavy weather.
a thick pane of glass set in the hull or deck to admit light.

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Origin of deadlight

First recorded in 1720–30; dead + light1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

Example sentences from the Web for deadlight

British Dictionary definitions for deadlight

deadlight
/ (ˈdɛdˌlaɪt) /

noun

nautical
  1. a bull's-eye let into the deck or hull of a vessel to admit light to a cabin
  2. a shutter of wood or metal for sealing off a porthole or cabin window
a skylight designed not to be opened
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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