[ 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. 2021

Example sentences from the Web for lamina

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 lamina

laminar 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

Medical definitions for lamina

[ lămə-nə ]

n. pl. lam•i•nas

A thin plate, sheet, or layer.
A thin layer of bone, membrane, or other tissue.

Other words from lamina

lami•nar null adj.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Scientific definitions for lamina

[ lămə-nə ]

Plural laminae (lămə-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.
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