Definition

A condition in which a person's immune system reacts unusually strongly to certain substances, causing symptoms like sneezing, itching, or skin rashes.

Example

She has a severe allergy to peanuts that requires her to carry an epinephrine auto-injector.

Conversation

I heard you have an allergy to peanuts, is that true?

Yeah, it’s really tough sometimes, especially at parties.

That must be frustrating when you're trying to eat something delicious.

Definitely! I always have to ask about ingredients.

Synonyms & Antonyms

Root Explanation

Allergy → It is formed from "allos" (meaning other) and "ergon" (meaning work or action) in Greek. The term describes a reaction to something that is perceived as different or foreign, causing an abnormal response in the body.

Memory Tip

Think of 'other' ('allos') and 'work' ('ergon') to remember that an allergy is an abnormal reaction to something that is different from what your body is used to.

Visually Confused Words