Any of various gram-negative,rod-shaped,mostly aerobic flagellated bacteria of the phylum Pseudomonad,commonly found in soil,water,and decaying matter and including some plant and animal pathogens.

• 假单胞菌任一种革兰氏阳性杆状的假单菌门雷氧鞭毛虫细菌，一般见于土壤、水、腐败物，还有一些植物和动物的病原体中。