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lacunar

[luh-kyoo-ner]
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noun, plural la·cu·nars, lac·u·nar·i·a [lak-yuh-nair-ee-uh] /ˌlæk yəˈnɛər i ə/.
  1. Architecture.
    1. a coffered vault, ceiling, or soffit.
    2. coffer(def 4).
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adjective
  1. lacunal.
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Origin of lacunar

First recorded in 1690–1700; lacun(a) + -ar1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for lacunar

lacunar

noun plural lacunars or lacunaria (ˌlækjʊˈnɛərɪə)
  1. Also called: lequear a ceiling, soffit, or vault having coffers
  2. another name for coffer (def. 3)
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adjective
  1. of, relating to, or containing a lacuna or lacunas
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Word Origin

C17: from Latin lacūnar panelled ceiling, from lacūna cavity; see lacuna
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

lacunar in Medicine

lacunar

(lə-kyōōnər)
adj.
  1. Of or relating to a lacuna; lacunal.
  2. Of or relating to a temporary absence of manifestation of a symptom.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.