[mez-uh-fil, mes-, mee-zuh-, -suh-]

Origin of mesophyll

First recorded in 1830–40; meso- + -phyll
Related formsmes·o·phyl·lic, mes·o·phyl·lous, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for mesophyll

Historical Examples of mesophyll

British Dictionary definitions for mesophyll


  1. the soft chlorophyll-containing tissue of a leaf between the upper and lower layers of epidermis: involved in photosynthesis
Derived Formsmesophyllic or mesophyllous, adjective
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

mesophyll in Science


  1. The tissues of a leaf that are located in between the layers of epidermis and carry on photosynthesis, consisting of the palisade layer and the spongy parenchyma. Most mesophyll cells contain chloroplasts.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.