pyrogen

noun
py·ro·gen | \ ˈpī-rə-jən \

Definition of pyrogen 

: a fever-producing substance

First Known Use of pyrogen

1875, in the meaning defined above

History and Etymology for pyrogen

International Scientific Vocabulary

Keep scrolling for more

Learn More about pyrogen

Statistics for pyrogen

Look-up Popularity

Time Traveler for pyrogen

The first known use of pyrogen was in 1875

See more words from the same year

Keep scrolling for more

More Definitions for pyrogen

pyrogen

noun
py·ro·gen | \ ˈpī-rə-jən \

Medical Definition of pyrogen 

: a fever-producing substance (as various thermostable products of bacterial metabolism)

More from Merriam-Webster on pyrogen

Britannica.com: Encyclopedia article about pyrogen

Comments on pyrogen

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

WORD OF THE DAY

a magnificent or impressive array

Get Word of the Day daily email!

Test Your Vocabulary

Name that Food Quiz

Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Word Winder's CrossWinder

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

TAKE THE QUIZ

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!