Definition of "opsonins" [opsonins]

• Plural form of opsonin. (noun)

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• "The absorption of the pathogenic bacteria, helped by the opsonins, is important but it is only the beginning of a series of phenomena that culminates in the digestion of the microbes within the phagocytes."
• "He even goes so far as to admit the existence of a spontaneous phagocytosis, which evolves without the aid of the opsonins."
• "But, insisting on the preparation of the morbid agents by the opsonins, Wright admits the virtue of the phagocytes in ridding the organism of microbes."