non·​in·​fec·​tious | \ ˌnän-in-ˈfek-shəs How to pronounce noninfectious (audio) \

Definition of noninfectious

: not infectious or caused by infection noninfectious diseases a vaccine containing inactivated noninfectious viruses noninfectious allergic conjunctivitis

Examples of noninfectious in a Sentence

Recent Examples on the Web Ileana Arias, the acting deputy director for noninfectious diseases at CDC, said. Claudia Harmata,, "17-Year-Old Texas Girl on Life Support, Family Says Illness Due to Vaping," 11 Sep. 2019 The lack of progress is especially disheartening considering that H.I.V. medications, when properly administered, render patients almost totally noninfectious. Christopher Glazek, New York Times, "The C.E.O. of H.I.V.," 26 Apr. 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'noninfectious.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of noninfectious

1850, in the meaning defined at sense 1

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The first known use of noninfectious was in 1850

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Cite this Entry

“Noninfectious.” The Dictionary, Merriam-Webster Inc., Accessed 6 December 2019.

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non·​in·​fec·​tious | \ -in-ˈfek-shəs How to pronounce noninfectious (audio) \

Medical Definition of noninfectious

: not infectious noninfectious disease noninfectious endocarditis

Comments on noninfectious

What made you want to look up noninfectious? Please tell us where you read or heard it (including the quote, if possible).


very cautious or careful

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