hepatitis

noun

hep·​a·​ti·​tis ˌhe-pə-ˈtī-təs How to pronounce hepatitis (audio)
plural hepatitides ˌhe-pə-ˈti-tə-ˌdēz How to pronounce hepatitis (audio) also hepatitises ˌhe-pə-ˈtī-tə-səz How to pronounce hepatitis (audio)
1
: inflammation of the liver
2
: a disease or condition (such as hepatitis A or hepatitis B) marked by inflammation of the liver

Did you know?

The liver, the body's largest gland, performs many important tasks, but is also vulnerable to many illnesses. At least five types of hepatitis, labeled with the letters A–E, are caused by viruses. The most common are hepatitis A, acquired through contaminated food and water; hepatitis B, which usually travels via sexual activity or shared needles; and hepatitis C, generally passed through shared needles. Some other types, including alcoholic hepatitis (caused by drinking too much alcohol), aren't infectious. There are vaccines for types A and B, and drug treatments for A, B, and C, though the drugs aren't always effective.

Examples of hepatitis 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.
Avoiding alcohol, managing your weight, eating a balanced diet, and staying up to date on your hepatitis vaccines can lower your risk of liver fibrosis. Lindsay Curtis, Health, 8 Apr. 2025 Kennedy has faced criticism for layoffs impacting a wide range of federal health agency services, including forcing Food and Drug Administration officials to cut back on food and drug safety inspections and eliminating the CDC's only labs to investigate STD and viral hepatitis outbreaks. Alexander Tin, CBS News, 7 Apr. 2025 Viral hepatitis is often undiagnosed and underreported. Chiara Eisner, NPR, 16 Apr. 2025 Infectious disease programs took a hit, too, including programs that fight outbreaks in other countries, labs focused on HIV and viral hepatitis in the U.S. and staff working on tuberculosis elimination. Arkansas Online, 2 Apr. 2025 See All Example Sentences for hepatitis

Word History

Etymology

New Latin

First Known Use

circa 1751, in the meaning defined at sense 1

Time Traveler
The first known use of hepatitis was circa 1751

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Cite this Entry

“Hepatitis.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hepatitis. Accessed 5 May. 2025.

Kids Definition

hepatitis

noun
hep·​a·​ti·​tis ˌhep-ə-ˈtīt-əs How to pronounce hepatitis (audio)
plural hepatitides -ˈtit-ə-ˌdēz How to pronounce hepatitis (audio) also hepatitises
-ˈtīt-ə-səz
: inflammation of the liver
also : any of several virus diseases marked especially by inflammation of the liver

Medical Definition

hepatitis

noun
hep·​a·​ti·​tis ˌhep-ə-ˈtīt-əs How to pronounce hepatitis (audio)
plural hepatitides -ˈtit-ə-ˌdēz How to pronounce hepatitis (audio) also hepatitises
-ˈtīt-ə-səz
1
: inflammation of the liver
2
: a disease or condition (as hepatitis A or hepatitis B) marked by inflammation of the liver
hepatitic adjective

More from Merriam-Webster on hepatitis

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