| 单词 |
obligately |
| 释义 |
obligately, adv. Biol.|ˈɒblɪgətlɪ| [f. obligate ppl. a. + -ly2.] Out of necessity, because restricted to such a mode of life or such environmental conditions.
1952[see saprobe]. 1955New Biol. XVIII. 54 These nitrogen-fixing bacteria were found to differ strikingly in that Clostridium is obligately anaerobic, i.e. able to grow only in the absence of oxygen. 1967Oceanogr. & Marine Biol. V. 194 An obligately psychrophilic marine bacterium. 1971[see halophilic a.]. 1974Nature 18 Oct. 574/2 Whether a symbiotic association is mutualistic or obligately parasitic. |

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