• synonyms


adjective Immunology.
  1. of, relating to, or influenced by opsonin; capable of promoting phagocytosis.
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Origin of opsonic

First recorded in 1900–05; opson(in) + -ic
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for opsonic

Historical Examples of opsonic

  • Wright and his followers regard the opsonic index as an index of the power of the body to combat bacterial invasion.

    A Manual of Clinical Diagnosis

    James Campbell Todd

  • By opsonic action is meant the effect which a serum has on (c) Opsonic action.

  • In other forms of infection, vaccines are employed to increase the opsonic power of the blood.

    Manual of Surgery

    Alexis Thomson and Alexander Miles

  • Of these the most important are (a) bacteriolytic or lysogenic action, (b) agglutinative action, and (c) opsonic action.

opsonic in Medicine


  1. Of, relating to, or produced by opsonins.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.