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A proteolytic enzyme regulated by the concentration of calcium ions.
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.
any of various enzymes in mammals and other organisms that are involved in the proteolysis of endogenous proteins and are regulated by the concentration of calcium ions
[C20: from cal(modulin) + (pa)pain]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014