lam·i·na

[lam-uh-nuh]
noun, plural lam·i·nae [-nee] , lam·i·nas.
1.
a thin plate, scale, or layer.
2.
a layer or coat lying over another, as the plates of minerals or bones.
3.
Botany. the blade or expanded portion of a leaf.
4.
Geology. a layer of sediment or sedimentary rock only a small fraction of an inch (less than a centimeter) in thickness.
Origin:
1650–60; < Latin; see lame2

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
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Laminae is always a great word to know.
So is quincunx. Does it mean:
an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle.
a children's mummer's parade, as on the Fourth of July, with prizes for the best costumes.
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Collins
World English Dictionary
lamina (ˈlæmɪnə) [Click for IPA pronunciation guide]
 
—n , pl -nae, -nas
1.  a thin plate or layer, esp of bone or mineral
2.  botany the flat blade of a leaf, petal, or thallus
 
[C17: New Latin, from Latin: thin plate]
 
'laminar
 
—adj
 
laminose
 
—adj

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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American Heritage
Medical Dictionary

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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American Heritage
Science Dictionary
lamina   (lām'ə-nə)  Pronunciation Key 
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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Example sentences
The nature of the laminae is an important although difficult characteristic to use in distinguishing species.
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