penicillin O

noun

-ˈō How to pronounce penicillin O (audio)
: a penicillin C13H18N2O4S2 that is similar to penicillin G in antibiotic activity but that is obtained by growing the penicillia in a culture medium that contains a precursor

Dictionary Entries Near penicillin O

penicillin G procaine

penicillin O

penicillin V

See More Nearby Entries 

Cite this Entry

“Penicillin O.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/penicillin%20O. Accessed 1 Apr. 2023.

Copy Citation

Share

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

Listen to the pronunciation of shenanigans

See Definitions and Examples »

Test Your Vocabulary

A Good Old-Fashioned Quiz

  • butter churn
True or False

Test your knowledge - and maybe learn something along the way.

TAKE THE QUIZ
Solve today's spelling word game by finding as many words as you can with using just 7 letters. Longer words score more points.

Can you make 12 words with 7 letters?

PLAY
Words at Play
Ask the Editors
Word Games