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opsonin
[ op-suh-nin ]
/ ˈɒp sə nɪn /
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noun Immunology.
a constituent of normal or immune blood serum that makes invading bacteria more susceptible to the destructive action of the phagocytes.
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Origin of opsonin
1900–05; <Latin opsōn(ium) victuals (<Greek opsōnía, derivative of opsōneîn to buy provisions) + -in2
OTHER WORDS FROM opsonin
op·so·noid, adjectiveWords nearby opsonin
opsogen, opsomania, opsonic, opsonic index, opsonify, opsonin, opsonization, opsonize, opsonocytophagic, opsonometry, -opsy
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021
How to use opsonin in a sentence
British Dictionary definitions for opsonin
opsonin
/ (ˈɒpsənɪn) /
noun
a constituent of blood serum that renders invading bacteria more susceptible to ingestion by phagocytes in the serum
Derived forms of opsonin
opsonic (ɒpˈsɒnɪk), adjectiveWord Origin for opsonin
C20: from Greek opsōnion victuals
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Medical definitions for opsonin
opsonin
[ ŏp′sə-nĭn ]
n.
An antibody in blood serum that causes bacteria or other foreign cells to become more susceptible to the action of phagocytes.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.