Dictionary.com
Thesaurus.com

hepatitis B

American  

noun

Pathology.
  1. a form of hepatitis caused by a DNA virus hepatitis B virus, or HBV that persists in the blood, characterized by a long incubation period: usually transmitted by sexual contact or by injection or ingestion of infected blood or other bodily fluids.


hepatitis B British  

noun

  1. Former name: serum hepatitis.  a form of hepatitis caused by a virus transmitted by infected blood (as in transfusions), contaminated hypodermic needles, sexual contact, or by contact with any other body fluid

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of hepatitis B

First recorded in 1970–75

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

The virus has some significant structural differences from known oncogenic viruses such as human papilloma virus, which is linked to cervical cancer, and hepatitis B and C, which are associated with liver cancer.

From Los Angeles Times Jun. 15, 2026

For example, the panel no longer recommends that all newborns in the United States receive a hepatitis B vaccine, a highly infectious disease that can lead to incurable liver damage.

From Barron's Mar. 16, 2026

Beyda was involved in lining up funding for a controversial study of the hepatitis B vaccine in Guinea-Bissau without input from the agency’s center that oversees viral hepatitis.

From The Wall Street Journal Mar. 2, 2026

A sizeable portion of Guinea-Bissau's population is estimated to have hepatitis B, and the WHO says vaccination at birth prevents the virus being transmitted from mother to baby in 70-95% of cases.

From BBC Feb. 14, 2026

With the help of Slavin’s serum, Blumberg eventually uncovered the link between hepatitis B and liver cancer, and created the first hepatitis B vaccine, saving millions of lives.

From "The Immortal Life of Henrietta Lacks" by Rebecca Skloot

Vocabulary.com logo
by dictionary.com

Dictionary.com's Learning Companion

Go beyond just looking up words.
Remember them forever with VocabTrainer.

Start training