Coxiella
noun
Cox·i·el·la
| \ ˌkäk-sē-ˈel-ə
\
\
Medical Definition of Coxiella
: a genus of small pleomorphic gram-negative bacteria (family Coxiellaceae) occurring intercellularly in ticks and intracellularly in the cytoplasm of vertebrates and including the causative organism (C. burnetii) of Q fever