[ lam-uh-nuh ]
/ ˈlæm ə nə /
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noun, plural lam·i·nae [lam-uh-nee], /ˈlæm əˌni/, lam·i·nas.
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.
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Origin of lamina
From Latin, dating back to 1650–60; see origin at lame2
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use lamina in a sentence
The furca is, as a rule, a powerful motor-organ, and has its laminae edged with strong teeth (ungues) or setae or both.
It crystallizes in yellow laminae, which melt at 96 C. and explode at slightly higher temperatures.
This disease is primarily a non-infective inflammation of the sensitive laminae which very frequently affects the front feet.
Chronic laminitis is a sequel of acute inflammation of the sensitive laminae.
An ordinary-sized tree standing on end, measured 22 inches in diameter: there were 12 laminae to the inch.Missionary Travels and Researches in South Africa|David Livingstone
British Dictionary definitions for lamina
/ (ˈlæmɪnə) /
noun plural -nae (-ˌniː) or -nas
a thin plate or layer, esp of bone or mineral
botany the flat blade of a leaf, petal, or thallus
Derived forms of laminalaminar or laminose (ˈlæmɪˌnəʊs, -ˌnəʊz), adjective
Word Origin for lamina
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
Scientific definitions for lamina
[ lăm′ə-nə ]
Plural laminae (lăm′ə-nē′) laminas
The expanded area of a leaf or petal; a blade. See more at leaf.
A thin layer of bone, membrane, or other tissue.
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 © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.