Agrobacterium

noun
Ag·​ro·​bac·​te·​ri·​um | \ ¦a-grō-ˌbak-ˈtir-ē-əm \

Definition of Agrobacterium

: a genus of small usually gram-negative and motile bacterial rods (family Rhizobiaceae) including soil forms that vigorously reduce nitrates and several pathogens of cultivated plants that typically cause galls on stems — compare crown gall

Love words?

You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Start your free trial today and get unlimited access to America's largest dictionary, with:

  • More than 250,000 words that aren't in our free dictionary
  • Expanded definitions, etymologies, and usage notes
  • Advanced search features
  • Ad free!

First Known Use of Agrobacterium

1942, in the meaning defined above

History and Etymology for Agrobacterium

New Latin, from agro- + bacterium

Learn More About Agrobacterium

Time Traveler for Agrobacterium

Time Traveler

The first known use of Agrobacterium was in 1942

See more words from the same year

Dictionary Entries Near Agrobacterium

agro-analogous

Agrobacterium

agrobiologic

See More Nearby Entries 

Statistics for Agrobacterium

Cite this Entry

“Agrobacterium.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Agrobacterium. Accessed 19 Aug. 2022.

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

WORD OF THE DAY

Test Your Vocabulary

Words Named After People

  • name tags
  • Namesake of the leotard, Jules Léotard had what profession?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Universal Daily Crossword

A daily challenge for crossword fanatics.

TAKE THE QUIZ
Love words? Need even more definitions?

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