tubercle bacillus


Definition of tubercle bacillus

: a bacterium (Mycobacterium tuberculosis) that is a major cause of tuberculosis

First Known Use of tubercle bacillus

1882, in the meaning defined above

Keep scrolling for more

Learn More About tubercle bacillus

Time Traveler for tubercle bacillus

Time Traveler

The first known use of tubercle bacillus was in 1882

See more words from the same year

Dictionary Entries Near tubercle bacillus


tubercle bacillus


See More Nearby Entries 

Statistics for tubercle bacillus

Cite this Entry

“Tubercle bacillus.” Dictionary, Merriam-Webster, Accessed 19 Oct. 2021.

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

Keep scrolling for more

More Definitions for tubercle bacillus

tubercle bacillus


Medical Definition of tubercle bacillus

: a bacterium of the genus Mycobacterium (M. tuberculosis) that causes tuberculosis in humans also : a related mycobacterium (M. bovis) that causes tuberculosis in cattle and sometimes humans especially in underdeveloped countries

More from Merriam-Webster on tubercle bacillus Encyclopedia article about tubercle bacillus


Test Your Vocabulary

Dog Words Quiz

  • shiba puppy more or less demanding cuddles
  • Which of the following animals has a dog in its etymology?
Spell It

Can you spell these 10 commonly misspelled words?

Love words? Need even more definitions?

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