exotoxin

noun
exo·​tox·​in | \ˌek-sō-ˈtäk-sən \

Definition of exotoxin 

: a soluble poisonous substance produced during growth of a microorganism and released into the surrounding medium

First Known Use of exotoxin

1920, in the meaning defined above

History and Etymology for exotoxin

International Scientific Vocabulary

Keep scrolling for more

Learn More about exotoxin

Statistics for exotoxin

Look-up Popularity

Time Traveler for exotoxin

The first known use of exotoxin was in 1920

See more words from the same year

Keep scrolling for more

More Definitions for exotoxin

exotoxin

noun
exo·​tox·​in | \ˌek-sō-ˈtäk-sən \

Medical Definition of exotoxin 

: a soluble poisonous substance produced during growth of a microorganism and released into the surrounding medium tetanus exotoxin — compare endotoxin

Other Words from exotoxin

exotoxic \ -​ˈtäk-​sik \ adjective

More from Merriam-Webster on exotoxin

Britannica.com: Encyclopedia article about exotoxin

Comments on exotoxin

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

WORD OF THE DAY

noxious or harmful

Get Word of the Day daily email!

Test Your Vocabulary

A Thanksgiving Word Quiz

  • a-traditional-thanksgiving-dinner
  • November comes from a word for which of the following numbers?
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

TAKE THE QUIZ
SCRABBLE® Sprint

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!