Dictionary.com
Thesaurus.com

chickenpox

American  
[chik-uhn-poks] / ˈtʃɪk ənˌpɒks /
Or chicken pox

noun

  1. a disease, commonly of children, caused by the varicella zoster virus and characterized by mild headache and fever, malaise, and eruption of blisters on the skin and mucous membranes.


chickenpox British  
/ ˈtʃɪkɪnˌpɒks /

noun

  1. a highly communicable viral disease most commonly affecting children, characterized by slight fever and the eruption of a rash

"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

chickenpox Scientific  
/ chĭkən-pŏks′ /
  1. A highly contagious infectious disease, usually of children, caused by the varicella-zoster virus of the genus Varicellavirus. The infection is characterized by fever, and itching skin blisters that start on the trunk of the body and spread to the extremities.

  2. Also called varicella


Etymology

Origin of chickenpox

First recorded in 1720–30

Explanation

Chickenpox is a very contagious illness that causes fevers and a spotty rash. It used to be common for almost every child to get chickenpox at some point. Today a vaccine protects kids from getting chickenpox — and though it's thought of as a mild childhood disease, it can be serious or even deadly. Once you've had chickenpox, or the series of shots, you're immune from getting it again. The origin of chickenpox is uncertain: it may come from the resemblance of the rash to tiny chickpeas, or chicken pecks. Alternately, the chicken may refer to "children," or be a contrast to the more serious smallpox.

Keep Reading on Vocabulary.com

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.

Chickenpox is highly contagious - the most common symptom is an itchy, spotty rash.

From BBC • Jan. 7, 2024

Chickenpox is a highly infectious disease that mostly affects children and can cause an itchy rash, blisters and fever.

From Seattle Times • Nov. 14, 2023

Chickenpox has been spreading in your community, and now you’re really sick,’” Zink recalled.

From Washington Post • Dec. 26, 2022

Chickenpox is the first infection with the virus before it enters latency in the host.

From Textbooks • Jun. 9, 2022

Chickenpox is almost a harmless disease, but it is more infectious than even measles.

From Essays In Pastoral Medicine by ?Malley, Austin