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[ih-las-tin] /ɪˈlæs tɪn/
noun, Biochemistry
a protein constituting the basic substance of elastic tissue.
Origin of elastin
1870-75; elast(ic) + -in2 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for elastin
  • The dermis includes collagen, elastin, and nerve endings.
  • The lungs also become less elastic due to various factors including the loss of a tissue protein called elastin.
  • Specifically, she's been looking for collagen, elastin and hemoglobin.
British Dictionary definitions for elastin


(biochem) a fibrous scleroprotein constituting the major part of elastic tissue, such as the walls of arteries
Word Origin
C19: from elastic + -in
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Contemporary definitions for elastin
noun's 21st Century Lexicon
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elastin in Medicine

elastin e·las·tin (ĭ-lās'tĭn)
An elastic, fibrous mucoprotein, similar to collagen, and the major connective tissue protein of elastic fibers. Also called elasticin.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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