|

opsonin

DEFINITIONS OF: opsonin

1

n an antibody in blood serum that attaches to invading microorganisms and other antigens to make them more susceptible to the action of phagocytes

Type of:
antibody
any of a large variety of proteins normally present in the body or produced in response to an antigen which it neutralizes, thus producing an immune response
WORD FAMILY
USAGE EXAMPLES