noun
one of two usually recognized orders of true bacteria; Gram-negative spiral or spherical or rod-shaped bacteria usually motile by polar flagella; some contain photosynthetic pigments
• Syn: ↑Pseudomonadales
• Hypernyms: ↑animal order
• Member Holonyms: ↑division Eubacteria
• Member Meronyms:
Useful english dictionary. 2012.