A disorder of the immune system causing adverse reactions to substances (allergens) not harmful to most and marked by the body's production of histamines and associated with atopy, anaphylaxis, and asthma.
Altered susceptibility to a first treatment as exhibited in reaction to a subsequent one.
An antipathy, as toward a person or activity.
Any condition of hypersensitivity to a substance.
A relationship of mutual trust and respect. A close and harmonious relationship in which the people or groups concerned understand each other's feelings or ideas and communicate well.
Relation; proportion; conformity.