See more synonyms for lamina on
noun, plural lam·i·nae [lam-uh-nee] /ˈlæm əˌni/, 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 of lamina

From Latin, dating back to 1650–60; see origin at lame2 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for lamina

Historical Examples of lamina

British Dictionary definitions for lamina


noun plural -nae (-ˌniː) or -nas
  1. a thin plate or layer, esp of bone or mineral
  2. botany the flat blade of a leaf, petal, or thallus
Derived Formslaminar 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

lamina in Medicine


n. pl. lam•i•nas
  1. A thin plate, sheet, or layer.
  2. A thin layer of bone, membrane, or other tissue.
Related formslami•nar null adj.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

lamina in Science


Plural laminae (lămə-nē′) 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 © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.