actinomycin

noun ac·ti·no·my·cin \ -ˈmī-sᵊn \

Definition of actinomycin

: any of various red or yellow-red mostly toxic polypeptide antibiotics isolated from soil bacteria (especially Streptomyces antibioticus); specifically : one used to inhibit DNA or RNA synthesis

Origin and Etymology of actinomycin

New Latin Actinomyces actinomyces + 1-in


Medical Dictionary

actinomycin

noun ac·ti·no·my·cin \ -ˈmīs-ᵊn \

medical Definition of actinomycin

: any of various red or yellow-red mostly toxic polypeptide antibiotics isolated from soil bacteria (especially Streptomyces antibioticus); specifically : one used to inhibit DNA or RNA synthesis

Seen and Heard

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

Love words? Need even more definitions?

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

WORD OF THE DAY

a figure representing a hated person

Get Word of the Day daily email!

Test Your Vocabulary

Words for Summer: A Quiz

  • a-closeup-of-a-sunflower
  • Which of the following words means “of or relating to summer”?
Name That Thing

Test your visual vocabulary with our 10-question challenge!

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!