1. The capacity for or the practice of recognizing and respecting the beliefs or practices of others. 2a. Leeway for variation from a standard. b. The permissible deviation from a specified value of a structural dimension, often expressed as a percent. 3. The capacity to endure hardship or pain. 4.Medicinea. Physiological resistance to a poison. b. The capacity to absorb a drug continuously or in large doses without adverse effect; diminution in the response to a drug after prolonged use. 5a. Acceptance of a tissue graft or transplant without immunological rejection. b. Unresponsiveness to an antigen that normally produces an immunological reaction. 6. The ability of an organism to resist or survive infection by a parasitic or pathogenic organism.