opsonin

noun
op·​so·​nin | \ ˈäp-sə-nən How to pronounce opsonin (audio) \

Definition of opsonin

: any of various proteins (such as antibodies or complement) that bind to foreign particles and cells (such as bacteria) making them more susceptible to the action of phagocytes

First Known Use of opsonin

1903, in the meaning defined above

History and Etymology for opsonin

Latin opsonare to buy provisions, cater (from Greek opsōnein) + English -in entry 1 — more at oligopsony

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The first known use of opsonin was in 1903

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Cite this Entry

“Opsonin.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/opsonin. Accessed 19 Sep. 2020.

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opsonin

noun
op·​so·​nin | \ ˈäp-sə-nən How to pronounce opsonin (audio) \

Medical Definition of opsonin

: any of various proteins (as complement or antibodies) that bind to foreign particles and microorganisms (as bacteria) making them more susceptible to the action of phagocytes

More from Merriam-Webster on opsonin

Britannica.com: Encyclopedia article about opsonin

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