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proinsulin

[proh-in-suh-lin, -ins-yuh-]
noun Biochemistry.
  1. 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. 2018

proinsulin in Medicine

proinsulin

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