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[lam-uh-nuh] /ˈlæm ə nə/
noun, plural laminae
[lam-uh-nee] /ˈlæm əˌni/ (Show IPA),
a thin plate, scale, or layer.
a layer or coat lying over another, as the plates of minerals or bones.
Botany. the blade or expanded portion of a leaf.
Geology. a layer of sediment or sedimentary rock only a small fraction of an inch (less than a centimeter) in thickness.
Origin of lamina
From Latin, dating back to 1650-60; See origin at lame2 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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British Dictionary definitions for lamina


noun (pl) -nae (-ˌniː), -nas
a thin plate or layer, esp of bone or mineral
(botany) the flat blade of a leaf, petal, or thallus
Derived Forms
laminar, laminose (ˈlæmɪˌnəʊs; -ˌnəʊz) adjective
Word Origin
C17: New Latin, from Latin: thin plate
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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lamina in Medicine

lamina lam·i·na (lām'ə-nə)
n. pl. lam·i·nas or lam·i·nae (-nē')

  1. A thin plate, sheet, or layer.

  2. A thin layer of bone, membrane, or other tissue.

lam'i·nar or lam'i·nal adj.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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lamina in Science
Plural laminae (lām'ə-nē') or laminas
  1. The expanded area of a leaf or petal; a blade. See more at leaf.

  2. A thin layer of bone, membrane, or other tissue.

  3. The thinnest recognizable layer of sediment, differing from other layers in color, composition, or particle size. Laminae are usually less than 1 cm (0.39 inches) thick.

The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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