allergen

[ˈælədʒən]

allergen Definition

a substance that causes an allergic reaction.

Using allergen: Examples

Take a moment to familiarize yourself with how "allergen" can be used in various situations through the following examples!

  • Example

    Pollen is a common allergen.

  • Example

    Some people are allergic to certain foods, such as peanuts, which contain allergens.

  • Example

    Dust mites are another common allergen.

Phrases with allergen

  • allergen-free

    free from substances that cause an allergic reaction

    Example

    This restaurant offers allergen-free options for customers with food allergies.

  • a medical treatment that involves exposing a person to small amounts of an allergen over time to reduce or eliminate their allergic reaction to it

    Example

    My doctor recommended allergen immunotherapy to help me manage my allergies.

  • a strategy for managing allergies that involves avoiding exposure to substances that cause an allergic reaction

    Example

    I try to practice allergen avoidance by keeping my home clean and free of dust and pet dander.

Origins of allergen

from Greek 'allos', meaning 'other', and 'ergon', meaning 'work'

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Summary: allergen in Brief

An 'allergen' [ˈælədʒən] is a substance that causes an allergic reaction. Common allergens include pollen, certain foods like peanuts, and dust mites. Phrases like 'allergen-free' and 'allergen immunotherapy' refer to ways of managing allergies by avoiding exposure to allergens or undergoing medical treatment to reduce sensitivity to them.

How do native speakers use this expression?