Nursing Central is the award-winning, complete mobile solution for nurses and students. Look up information on diseases, tests, and procedures; then consult the database with 5,000+ drugs or refer to 65,000+ dictionary terms. Explore these free sample topics:
-- The first section of this topic is shown below --
1. In immunology, administration of a specific antigen to an individual known to be sensitive to that antigen in order to produce an immune response.
2. To expose or infect.
3. In the law, to test the suitability or validity of someone or something.
SEE: challenge for cause