hepatitis

noun

hep·​a·​ti·​tis ˌhe-pə-ˈtī-təs 

plural hepatitides ˌhe-pə-ˈti-tə-ˌdēz  also hepatitises ˌhe-pə-ˈtī-tə-səz 

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

In many parts of the world, clinicians never stopped caring for measles, meningitis, hepatitis, tetanus, diphtheria, or mumps. —Krutika Kuppalli, STAT, 12 Jan. 2026

All six – hepatitis A, hepatitis B, influenza, rotavirus, meningococcal disease and COVID-19 – will still be covered by federal programs such as Medicaid and the Vaccines for Children program, and by private insurers, at least through 2026. —Washington Post, 9 Jan. 2026

The changes affect vaccines for illnesses like the flu, COVID-19, RSV and hepatitis, though routine shots for diseases such as measles, polio and whooping cough remain the same. —Evan Moore, Charlotte Observer, 8 Jan. 2026

These include shots that protect against influenza, COVID-19, rotavirus and some types of bacterial meningitis and viral hepatitis. —Dr. Jade Cobern, ABC News, 7 Jan. 2026

Word History

Etymology

New Latin

First Known Use

circa 1751, in the meaning defined at sense 1

Phrases Containing hepatitis

• delta hepatitis
• hepatitis A
• hepatitis B
• hepatitis C
• hepatitis D
• hepatitis delta virus
• hepatitis D virus
• hepatitis E
• infectious hepatitis
• non-A, non-B hepatitis
• serum hepatitis

Rhymes for hepatitis

• adenitis
• arteritis
• blepharitis
• cervicitis
• cholangitis
• choroiditis
• decubitus
• dermatitis
• fasciitis
• gingivitis
• iritis
• keratitis

Kids Definition

hepatitis

noun

hep·​a·​ti·​tis ˌhep-ə-ˈtīt-əs 

plural hepatitides -ˈtit-ə-ˌdēz  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 

plural hepatitides -ˈtit-ə-ˌdēz  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

-ˈtit-ik 

adjective