English > bacterium: 1 sense > noun 1, animal| Meaning | (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. |
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| Synonym | bacteria |
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| Category of | Gram-negative | (of bacteria) being of or relating to a bacterium that does not retain the violet stain used in Gram's method |
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| Gram-positive | (of bacteria) being or relating to a bacterium that retains the violet stain used in Gram's method |
| bioremediation | The act of treating waste or pollutants by the use of microorganisms (as bacteria) that can break down the undesirable substances |
| immune response, immune reaction, immunologic response | A bodily / bodily defense reaction that recognizes an invading substance (an antigen |
| microphage | A neutrophil that ingests small things (as bacteria) |
| peritrichous | Covered all over with uniformly distributed flagella |
| resistance | The degree of unresponsiveness of a disease-causing microorganism to antibiotics or other drugs (as in penicillin-resistant bacteria) |
| Category | microbiology | The branch of biology that studies microorganisms and their effects on humans |
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| Narrower | Calymmatobacterium, genus Calymmatobacterium | A genus of bacterial rods containing only the one species that causes granuloma inguinale |
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| Francisella, genus Francisella | A genus of Gram-negative aerobic bacteria that occur as pathogens and parasite in many animals (including humans) |
| Legionella pneumophilia, legionella | The motile aerobic rod-shaped Gram-negative bacterium that thrives in central heating and air conditioning systems and can cause Legionnaires' disease |
| acidophil, acidophile | An organism that thrives in a relatively acid environment |
| bacteroid | A rodlike bacterium (especially any of the rod-shaped or branched bacteria in the root nodules of nitrogen-fixing plants) |
| diplococcus | Gram-positive bacteria usually occurring in pairs |
| eubacteria, eubacterium, true bacteria | A large group of bacteria having rigid cell walls |
| gonococcus, Neisseria gonorrhoeae | The pus-producing bacterium that causes gonorrhea |
| nitrobacterium | Any of the bacteria in the soil that take part in the nitrogen cycle |
| penicillin-resistant bacteria | bacteria that are unaffected by penicillin |
| probiotic, probiotic bacterium, probiotic microflora, probiotic flora | A beneficial bacterium found in the intestinal tract of healthy mammals |
| pus-forming bacteria | bacteria that produce pus |
| rod | Any rod-shaped bacterium |
| superbug | A strain of bacteria that is resistant to all antibiotics |
| Broader | microorganism, micro-organism | Any organism of microscopic size |
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| Spanish | bacteria, bacterias |
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| Catalan | bacteri, bacteris, eubacteri |
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| Adjectives | bacterial | relating to or caused by bacteria |
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| bacterioidal | resembling bacteria |
| Verbs | bacterize, bacterise | subject to the action of bacteria |
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