proinsulin

[ proh-in-suh-lin, -ins-yuh- ]
/ proʊˈɪn sə lɪn, -ˈɪns yə- /

noun Biochemistry.

the prohormone of insulin, converted into insulin by enzymatic removal of part of the molecule.

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Origin of proinsulin

First recorded in 1915–20; pro-1 + insulin
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Medical definitions for proinsulin

proinsulin
[ prō-ĭnsə-lĭn ]

n.

A single-chain polypeptide that is the precursor of insulin, converted into insulin by enzymatic action.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.