kleb·si·el·la 
(klĕb′zē-ĕlə)
(klĕb′zē-ĕlə)n.
A nonmotile, gram-negative, rod-shaped bacterium of the genus Klebsiella, such as K. pneumoniae, that causes pneumonia and other infections usually in patients with diminished immunity, such as diabetics and alcoholics.
[New Latin, genus name, after Edwin Klebs (1834-1913), German-American pathologist born in Königsberg (Kaliningrad).]