Medical Dictionary
Main Entry:
Rick·ett·si·a·les Pronunciation:
ri-"ket-sE-'A-(")lEz Function:
noun plural : an order of small pleomorphicgram-negative bacteria that are obligate parasites living in vertebrates or in arthropods which often serve as vectors of those parasitic in vertebrates and are placed in the families Anaplasmataceae,Bartonellaceae, and Rickettsiaceae
