Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

mycobacterium

play
noun my·co·bac·te·ri·um \ˌmī-kō-bak-ˈtir-ē-əm\

Definition of mycobacterium

  1. :  any of a genus (Mycobacterium) of nonmotile aerobic acid-fast bacteria that include numerous saprophytes and the pathogens causing tuberculosis and leprosy

mycobacterial

play \-ē-əl\ adjective


Origin and Etymology of mycobacterium

New Latin


First Known Use: 1909


Medical Dictionary

mycobacterium

play
noun my·co·bac·te·ri·um \-ˈtir-ē-əm\

Medical Definition of mycobacterium

  1. 1 capitalized :  a genus of nonmotile acid-fast aerobic bacteria of the family Mycobacteriaceae that are usually slender and difficult to stain and that include the causative agents of tuberculosis (M. tuberculosis) and leprosy (M. leprae) as well as numerous purely saprophytic forms

  2. 2plural mycobacteria \-ē-ə\play :  any bacterium of the genus Mycobacterium or a closely related genus

mycobacterial

\-ē-əl\play adjective



Learn More about mycobacterium


Seen and Heard

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

WORD OF THE DAY

a very small amount

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

alphabet-pasta-spelling-help

Which is the correct spelling?

accommodate accomodate acommodate acommadate
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ