Dictionary

allergy

noun al·ler·gy \ˈa-lər-jē\

: a medical condition that causes someone to become sick after eating, touching, or breathing something that is harmless to most people

plural al·ler·gies

Full Definition of ALLERGY

1
:  altered bodily reactivity (as hypersensitivity) to an antigen in response to a first exposure <a bee venom allergy so severe that a second sting may be fatal>
2
:  exaggerated or pathological immunological reaction (as by sneezing, difficult breathing, itching, or skin rashes) to substances, situations, or physical states that are without comparable effect on the average individual
3
:  medical practice concerned with allergies
4
:  a feeling of antipathy or aversion

Examples of ALLERGY

  1. Many people have some form of allergy.
  2. <independent-minded people who seem to have an allergy to any control from the government>

Origin of ALLERGY

German Allergie, from all- + Greek ergon work — more at work
First Known Use: 1910

allergy

noun al·ler·gy \ˈal-ər-jē\   (Medical Dictionary)
plural al·ler·gies

Medical Definition of ALLERGY

1
:  altered bodily reactivity (as hypersensitivity) to an antigen in response to a first exposure <his bee-venom allergy may render a second sting fatal>
2
:  exaggerated or pathological reaction (as by sneezing, respiratory embarrassment, itching, or skin rashes) to substances, situations, or physical states that are without comparable effect on the average individual
3
:  medical practice concerned with allergies

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