An exaggerated or inappropriate immune response to a normally harmless substance, classified into four types based on the mechanism involved. Also known as allergic reactions.
From Greek 'hyper' meaning 'over' or 'excessive' and Latin 'sensitivus' meaning 'capable of sensation.' The term was coined in the early 1900s to describe overactive immune responses.
Hypersensitivity is your immune system being a drama queen - it sees a harmless peanut or pollen and reacts like it's facing a deadly invasion! The four types of hypersensitivity are like different styles of overreacting, from immediate explosive responses to slow-burn tissue damage.
Complete word intelligence in one call. Free tier — 50 lookups/day.