Medical Definition of penicillin F
: a penicillin C14H20N2O4S that was the first of the penicillins isolated in Great Britain
Love words? Need even more definitions?Merriam-Webster unabridged
Words at Play
Ask the Editors
- On Contractions of Multiple Words
- A Look at Uncommon Onomatopoeia
- Is Singular 'They' a Better Choice?