lamina

[lam-uh-nuh]
noun, plural laminae [lam-uh-nee] , laminas.
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

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World English Dictionary
lamina (ˈlæmɪnə)
 
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
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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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