1. the quality or capacity of a substance to provoke an allergic reaction in a person or animal
Usage: technical/medical term; uncountable noun

Examples

• The allergenicity of peanuts makes them a common food allergen.
• Scientists are studying ways to reduce the allergenicity of certain medications.
• Pollen from ragweed has high allergenicity during late summer.
• The allergenicity of latex has led to its replacement in many medical settings.
• Researchers tested the allergenicity of the new protein in laboratory mice.
• Seasonal variations can affect the allergenicity of airborne particles.