opsonin
Noun
Meaning
an antibody in blood serum that attaches to invading microorganisms and other antigens to make them more susceptible to the action of phagocytes
Source: WordNetSynonyms
blood
leukocyte
plasma
circulation
humor
complement
serum
hemoglobin
haemoglobin
lifeblood
ichor
humour
antibody
antigen
erythrocyte
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