[ hee-moh-sid-er-in, hem-oh- ]
/ ˌhi moʊˈsɪd ər ɪn, ˌhɛm oʊ- /

noun Biochemistry.

a yellowish-brown protein containing iron, derived chiefly from hemoglobin and found in body tissue and phagocytes, especially as the result of disorders in iron metabolism and the breakdown of red blood cells.

Origin of hemosiderin

First recorded in 1895–1900; hemo- + sider- + -in2
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Medicine definitions for hemosiderin

[ hē′mō-sĭdər-ĭn ]


An insoluble protein that contains iron and that is produced by phagocytic digestion of hematin and found as granules in most tissues, especially in the liver.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.