allergy

Medical usage describes a hypersensitive immune response to an allergen, often resulting in physical symptoms like rashes or respiratory distress. It carries a clinical tone and implies a biological malfunction where the body overreacts to a benign trigger. In a figurative sense, the word describes a psychological or ideological repulsion. This usage is typically ironic or hyperbolic, suggesting that a person finds a particular concept or behavior so distasteful that it triggers an instinctive, visceral rejection.