gramicidin

noun
gram·​i·​ci·​din | \ ˌgra-mə-ˈsī-dᵊn How to pronounce gramicidin (audio) \

Definition of gramicidin

: any of several toxic crystalline polypeptide antibiotics produced by a soil bacterium (Bacillus brevis) and used against gram-positive bacteria in local infections

First Known Use of gramicidin

1940, in the meaning defined above

History and Etymology for gramicidin

gram-positive + -i- + -cide + -in entry 1

Learn More About gramicidin

Time Traveler for gramicidin

Time Traveler

The first known use of gramicidin was in 1940

See more words from the same year

Dictionary Entries Near gramicidin

gram-fast

gramicidin

gramied

See More Nearby Entries 

Statistics for gramicidin

Cite this Entry

“Gramicidin.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/gramicidin. Accessed 13 Aug. 2022.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon

More Definitions for gramicidin

gramicidin

noun
gram·​i·​ci·​din | \ ˌgram-ə-ˈsīd-ᵊn How to pronounce gramicidin (audio) \

Medical Definition of gramicidin

: an antibacterial mixture produced by a soil bacterium of the genus Bacillus (B. brevis) and used topically against gram-positive bacteria in local infections especially of the eye

More from Merriam-Webster on gramicidin

Britannica.com: Encyclopedia article about gramicidin

WORD OF THE DAY

Test Your Vocabulary

Words Named After People

  • name tags
  • Namesake of the leotard, Jules Léotard had what profession?
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
Universal Daily Crossword

A daily challenge for crossword fanatics.

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!