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allergen — a substance that causes an allergic reaction

Part of speech: NOUN

Definition: a substance that causes an allergic reaction

Pronunciation (IPA): /ˈælərʤən/

Example Sentences

  • The restaurant's menu clearly labels all major allergens like nuts, dairy, and shellfish.
  • My cat is apparently an allergen with legs - I love her but my nose disagrees.
  • Scientists are developing new treatments to help the immune system tolerate common allergens.

allergen

NOUN

[/ˈælərʤən/]

a substance that causes an allergic reaction

A single peanut on her plate becomes a dangerous allergen for the child.
💡 Concept

A single peanut on her plate becomes a dangerous allergen for the child.

From allergen to pathogen to antigen - microscopic threats revealed!
🎵 Rhyme

From allergen to pathogen to antigen - microscopic threats revealed!

Got the picture? Now let's practice.

🎤Pronunciation

🇺🇸 US/ˈælərʤən/
🇬🇧 UK/ˈælərʤən/

🌳Etymology

Rootallerg
Suffix--en

Origin

The term was coined in 1906 by German physician Clemens von Pirquet, combining Greek 'allos' (other, different) and 'ergon' (action, work) to create 'allergen,' literally meaning 'that which produces an altered reaction.' It describes a substance that triggers an abnormal immune response in the body.

Breakdown

allo- (Greek 'allos': other, different) + -erg- (Greek 'ergon': action, work) + -en (agent noun suffix: substance or thing that produces an action).

🎵Rhyme

pathogen
antigen
carcinogen

🔗Collocations

common allergen
food allergen
identify allergens
allergen-free
airborne allergens
avoid allergens

📝Examples

“The restaurant's menu clearly labels all major allergens like nuts, dairy, and shellfish.”

😄 Fun example

“My cat is apparently an allergen with legs - I love her but my nose disagrees.”

“Scientists are developing new treatments to help the immune system tolerate common allergens.”

😄 Fun example

“He discovered that his mysterious rash was caused by an unlikely allergen: his new lucky socks.”

📚Related Words

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