bacterium

(सूक्ष्मजीव विज्ञान) जीवाणु; विखंडन से प्रजनन करने वाला एककोशिकीय जीव

(microbiology) single-celled or noncellular spherical or spiral or rod-shaped organisms lacking chlorophyll that reproduce by fission; important as pathogens and for biochemical properties; taxonomy is difficult; often considered to be plants