narrow-spectrum

adjective

nar·​row-spec·​trum ˈnar-(ˌ)ō-ˈspek-trəm, ˈnar-ə- How to pronounce narrow-spectrum (audio)
: effective against only a limited range of organisms
narrow-spectrum antibiotics effective only against gram-negative bacteria
compare broad-spectrum

Dictionary Entries Near narrow-spectrum

Cite this Entry

“Narrow-spectrum.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/narrow-spectrum. Accessed 2 Feb. 2023.

Love words? Need even more definitions?

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


The Great British Vocabulary Quiz

  • union jack speech bubble
  • Named after Sir Robert Peel, what are British police called?
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

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