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deadlight

American  
[ded-lahyt] / ˈdɛdˌlaɪt /

noun

Nautical.
  1. a strong shutter able to be screwed against the interior of a porthole in heavy weather.

  2. a thick pane of glass set in the hull or deck to admit light.


deadlight British  
/ ˈdɛdˌlaɪt /

noun

  1. 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

  2. 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

Etymology

Origin of deadlight

First recorded in 1720–30; dead + light 1

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Feast on the details: white gold cowlings and guards, tiny coils to scale of halyards hung on mast cleats, even deadlight prisms of acrylic in the cockpit deck.

From Time Magazine Archive

He drew back to avoid a brick that threatened to enter the deadlight, and the conversation ended.

From The Grain Ship by Robertson, Morgan

Do not allow a man to go on deck, nor to open a deadlight.

From On a Torn-Away World Or, the Captives of the Great Earthquake by Rockwood, Roy

However, Denman could still look out through a deadlight.

From The Wreck of the Titan or, Futility by Robertson, Morgan

They are certainly particular about showing light after dark; by 6 p.m. all port-holes are closed, and every cabin has its iron deadlight down.

From The Incomparable 29th and the "River Clyde" by Davidson, George

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