Definition of properdin in English:


Line breaks: pro|per¦din
Pronunciation: /prəʊˈpəːdɪn


[mass noun] Biochemistry
  • A protein present in the blood, involved in the body’s response to certain kinds of infection.
    More example sentences
    • It has developed proprietary monoclonal antibodies to properdin that are potent in vitro and in vivo inhibitors of the complement alternative pathway.
    • Complement properdin increased by 21 percent compared to the placebo group.
    • In addition to evaluating the levels of complement properdin, measurement of other components of the complement system may provide more conclusive evidence on complement system activation.


1950s: from pro-2 'before' + Latin perdere 'destroy' + -in1.

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