/in tol"euhr euhns/ , n.
1. lack of toleration; unwillingness or refusal to tolerate or respect contrary opinions or beliefs, persons of different races or backgrounds, etc.
2. incapacity or indisposition to bear or endure: intolerance to heat.
3. abnormal sensitivity or allergy to a food, drug, etc.
4. an intolerant act.
[ 1755-65; intolerantia. See INTOLERANT, -ANCE ]