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allergic reaction
/ɐlˈɜːdʒɪk ɹɪˈækʃən/
/ɐlˈɜːdʒɪk ɹɪˈakʃən/
Allergic reaction
01
a reaction caused by inhaling, touching, or ingesting specific substances that one's body is severely sensitive to
Examples
An allergic reaction can occur when the immune system overreacts to a substance like pollen or peanuts.
He experienced a severe allergic reaction after eating shellfish, requiring immediate medical attention.
