How to Spell allergies

allergies - noun

• 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.

• Any condition of hypersensitivity to a substance.

• Altered susceptibility to a first treatment as exhibited in reaction to a subsequent one.

• An antipathy, as toward a person or activity.