facultative / ˈfæk əlˌteɪ tɪv /

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facultative 的定义

adj. 形容词 adjective
  1. conferring a faculty, privilege, permission, or the power of doing or not doing something: a facultative enactment.
  2. left to one's option or choice; optional: The last questions in the examination were facultative.
  3. that may or may not take place; that may or may not assume a specified character.
  4. Biology. having the capacity to live under more than one specific set of environmental conditions, as a plant that can lead either a parasitic or a nonparasitic life or a bacterium that can live with or without air.
  5. of or relating to the faculties.

facultative 近义词

adj. 形容词 adjective

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更多facultative例句

  1. Similarly the saphrophytes are classed as obligatory saphrophytes and facultative parasites.
  2. If a parasite cannot exist outside animal tissues, it is an obligatory parasite; if it can, it is a facultative saphrophyte.
  3. I have seen this particularly in those cases where facultative divergence also was greater than usual.
  4. Moreover, the extent of the "facultative" divergence attainable by prisms shows a considerable latitude.
  5. (b) Both saprophytic and facultative parasitic bacteria agree in requiring non-concentrated food.