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

Definition of Agrobacterium

  1. :  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

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Origin and Etymology of agrobacterium

New Latin, from agro- + bacterium

First Known Use: 1942

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a rounded knoll or a ridge of ice

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