renninogen


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ren·nin·o·gen

 (rĕ-nĭn′ə-jən)
n.
The zymogenic precursor of rennin.
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.