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a precursor of a hormone, such as a polypeptide that is cleaved to form a shorter polypeptide hormone or a steroid that is converted to an active hormone by peripheral metabolism. Called also prehormone.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.
1. An intraglandular precursor of a hormone; for example, proinsulin. Compare: prehormone.
2. Obsolete term formerly used to designate a substance developed in serum that antagonizes a specific antihormone, and thus enhances the action of the corresponding hormone.
Farlex Partner Medical Dictionary © Farlex 2012
An inactive compound that is converted by enzymes into a biologically active hormone.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
Intraglandular precursor of a hormone; e.g., proinsulin.
Medical Dictionary for the Dental Professions © Farlex 2012