The process by which the activity or presence of one substance interferes with, or suppresses, the activity of another substance with similar affinities.
- antigenic c. c. that occurs when two different antigens, each of which can evoke an immunologic response when inoculated alone, are mixed and inoculated together; the response may be to only one, that to the other being largely or entirely suppressed.
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com·pe·ti·tion (kom″pə-tishґən) the phenomenon in which two structurally similar molecules “compete†for a single binding site on a third molecule. See competitive inhibition, under inhibition.Medical dictionary. 2011.