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opsonin

American  
[op-suh-nin] / ˈɒp sə nɪn /

noun

Immunology.
  1. a constituent of normal or immune blood serum that makes invading bacteria more susceptible to the destructive action of the phagocytes.


opsonin British  
/ ˈɒpsənɪn /

noun

  1. a constituent of blood serum that renders invading bacteria more susceptible to ingestion by phagocytes in the serum

"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

Other Word Forms


Etymology

Origin of opsonin

1900–05; < Latin opsōn ( ium ) victuals (< Greek opsōnía, derivative of opsōneîn to buy provisions) + -in 2


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

A clathrin coating enhances phagocytosis, whereas opsonin reverses the process of phagocytosis.

From Textbooks ● Jun. 9, 2022

In the method for demonstrating opsonin about to be described, a comparison is made between the opsonic "power" of the pooled serum and the specific serum.

From The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. by J. W. H. (John William Henry) Eyre

B. B. Our friend Ridgeon will be gratified to hear that I have tried his opsonin treatment on little Prince Henry with complete success.

From The Doctor's Dilemma by Bernard Shaw

The opsonin is simple rot, as any capable surgeon can tell you; but we're all delighted to see your personal qualities officially recognized.

From The Doctor's Dilemma by Bernard Shaw

They do when you butter them with opsonin.

From The Doctor's Dilemma by Bernard Shaw

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