Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Medical
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

vaccinia

play
noun vac·cin·ia \vak-ˈsi-nē-ə\

Definition of vaccinia

  1. 1 :  a poxvirus (species Vaccinia virus of the genus Orthopoxvirus) that differs from but is closely related to the viruses causing smallpox and cowpox and that includes a strain of uncertain natural origin used in making vaccines against smallpox —called also vaccinia virus

  2. 2 :  a reaction to smallpox vaccine prepared from live vaccinia virus that may involve a rash, fever, headache, and body pain

vac·cin·i·al play \-nē-əl\ adjective


Origin of vaccinia

New Latin, from vaccinus


First Known Use: 1803


Medical Dictionary

vaccinia

play
noun vac·cin·ia \vak-ˈsin-ē-ə\

Medical Definition of vaccinia

  1. 1a:  cowpoxb:  a reaction to smallpox vaccine prepared from live vaccinia virus that may involve a rash, fever, headache, and body pain

  2. 2:  a poxvirus of the genus Orthopoxvirus (species Vaccinia virus) that differs from but is closely related to the viruses causing smallpox and cowpox and that includes a strain of uncertain natural origin used in making vaccines against smallpox—called also vaccinia virus

  3. vac·cin·i·al \-ē-əl\play adjective




Learn More about vaccinia


Seen and Heard

What made you want to look up vaccinia? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

February 11, 2016

the holder of an office

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

image33683556

How much does a batman (the Turkish unit of measurement) weigh?

100 pounds 2.2 pounds 16.96 pounds 196.5 pounds
Name That Thing

10 quick questions: hear them, spell them, and see how your skills compare to the crowd.

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ