atopy

noun

at·​o·​py ˈa-tə-pē How to pronounce atopy (audio)
: a genetic disposition to develop an allergic reaction (such as allergic rhinitis or asthma) and produce elevated levels of IgE upon exposure to an environmental antigen and especially one inhaled or ingested
atopic adjective

Word History

Etymology

Greek atopia uncommonness, from atopos out of the way, uncommon, from a- + topos place

First Known Use

1923, in the meaning defined above

Time Traveler
The first known use of atopy was in 1923

Dictionary Entries Near atopy

Cite this Entry

“Atopy.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/atopy. Accessed 29 Feb. 2024.

Medical Definition

atopy

noun
at·​o·​py ˈat-ə-pē How to pronounce atopy (audio)
plural atopies
: a genetic disposition to develop an allergic reaction (as allergic rhinitis, asthma, or atopic dermatitis) and produce elevated levels of IgE upon exposure to an environmental antigen and especially one inhaled or ingested

More from Merriam-Webster on atopy

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!