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communicable disease

noun

plural communicable diseases
: an infectious disease (such as cholera, hepatitis, influenza, malaria, measles, or tuberculosis) that is transmissible by contact with infected individuals or their bodily discharges or fluids (such as respiratory droplets, blood, or semen), by contact with contaminated surfaces or objects, by ingestion of contaminated food or water, or by direct or indirect contact with disease vectors (such as mosquitoes, fleas, or mice)

Note: The terms communicable disease and contagious disease are often used interchangeably. However, communicable diseases such as malaria or schistosomiasis that are spread by contact with disease vectors are not typically considered to be "contagious" diseases since they cannot be spread from direct contact with another person.

Examples of communicable disease in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Potential immigrants must pass a health screening and a medical exam, and they are tested for communicable diseases. Raul A. Reyes, MSNBC Newsweek, 21 Nov. 2025 They are screened for communicable diseases, such as tuberculosis, and asked to fill out a form that asks them to disclose any history of drug or alcohol use, mental health conditions, or violence. NPR, 12 Nov. 2025 They are screened for communicable diseases, like tuberculosis, and asked to fill out a form that asks them to disclose any history of drug or alcohol use, mental health conditions or violence. Amanda Seitz, ABC News, 7 Nov. 2025 They are screened for communicable diseases, like tuberculosis, and asked to fill out a form that asks them to disclose any history of drug or alcohol use, mental health conditions, or violence. Amanda Seitz, Miami Herald, 7 Nov. 2025 See All Example Sentences for communicable disease

Word History

First Known Use

1785, in the meaning defined above

Time Traveler
The first known use of communicable disease was in 1785

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Cite this Entry

“Communicable disease.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/communicable%20disease. Accessed 29 Nov. 2025.

Medical Definition

communicable disease

noun
: an infectious disease (as cholera, hepatitis, influenza, malaria, measles, or tuberculosis) that is transmissible by contact with infected individuals or their bodily discharges or fluids (as respiratory droplets, blood, or semen), by contact with contaminated surfaces or objects, by ingestion of contaminated food or water, or by direct or indirect contact with disease vectors (as mosquitoes, fleas, or mice)

Note: The terms communicable disease and contagious disease are often used interchangeably. However, communicable diseases (as malaria or schistosomiasis) that are spread by contact with disease vectors are not typically considered to be "contagious" diseases since they cannot be spread from direct contact with another person.

Last Updated: - Updated example sentences
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