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[luh-kyoo-nuh] /ləˈkyu nə/

noun, plural lacunae
[luh-kyoo-nee] /ləˈkyu ni/ (Show IPA), lacunas.
a gap or missing part, as in a manuscript, series, or logical argument; hiatus.
Anatomy. one of the numerous minute cavities in the substance of bone, supposed to contain nucleate cells.
Botany. an air space in the cellular tissue of plants.
noun (pl) -nae (-niː), -nas
a gap or space, esp in a book or manuscript
(biology) a cavity or depression, such as any of the spaces in the matrix of bone
another name for coffer (sense 3)

plural of lacuna (q.v.).

“blank or missing portion in a manuscript,” 1660s, from Latin lacuna “hole, pit,” diminutive of lacus “pond, lake” (see lake (n.1)). The Latin plural is lacunae. Related: Lacunal; lacunar; lacunose.

lacuna la·cu·na (lə-kyōō’nə)
n. pl. la·cu·nas or la·cu·nae (-nē)

la·cu’nal adj.


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  • Lacunar

    [luh-kyoo-ner] /ləˈkyu nər/ noun, plural lacunars, lacunaria [lak-yuh-nair-ee-uh] /ˌlæk yəˈnɛər i ə/ (Show IPA) 1. Architecture. adjective 2. . /ləˈkjuːnə/ noun (pl) lacunars, lacunaria (ˌlækjʊˈnɛərɪə) 1. Also called lequear. a ceiling, soffit, or vault having coffers 2. another name for coffer (sense 3) adjective 3. of, relating to, or containing a lacuna or lacunas lacunar […]

  • Lacunar amnesia

    lacunar amnesia n. A condition in which memory is partially lost or the memory of isolated events is lost.

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