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[hi-mol-i-sin, hee-muh-lahy-, hem-uh-] /hɪˈmɒl ɪ sɪn, ˌhi məˈlaɪ-, ˌhɛm ə-/
noun, Immunology
a substance, as an antibody, that in cooperation with complement causes dissolution of red blood cells.
Origin of hemolysin
1895-1900; hemo- + lysin Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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hemolysin in Medicine

hemolysin he·mol·y·sin (hĭ-mŏl'ĭ-sĭn, hē'mə-lī'-)
An agent or a substance, such as an antibody or a bacterial toxin, that causes the destruction of red blood cells, thereby liberating hemoglobin. Also called erythrocytolysin, erythrolysin.

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