bartonella
noun
bar·ton·el·la
ˌbärt-ᵊn-ˈel-ə 
1
capitalized
: a genus of gram-negative bacteria that is the type genus of the family Bartonellaceae and includes one (B. bacilliformis) causing bartonellosis transmitted by sand flies and another (B. henselae synonym Rochalimaea henselae) causing cat scratch disease
2
: any bacterium of the genus Bartonella
Cite this Entry
“Bartonella.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/bartonella. Accessed 31 Oct. 2025.
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