Also found in: Medical.
A small body, structure, particle, or granule, especially of living matter; cell: chloroplast.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
n combining form
(Biology) indicating an organized living cell or particle of living matter: protoplast.
[from Greek plastos formed, from plassein to form]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
a combining form meaning “living substance,” “organelle,” “cell”: chloroplast; protoplast; spheroplast.
[comb. form representing Greek plastós formed, molded, v. adj. of plássein to form, mold. compare plastic]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.