facultative

形容词 adj.
中文释义
英 /ˈfæ.kəl.tə.tɪv/    美 /ˈfæ.kəlˌteɪ.tɪv/

英文释义

形容词 adj.
  1. Of or relating to faculty, especially to mental faculty.
  2. Not obligate; optional, discretionary or elective.
    — But does the penny fare end here, said Mr. Nixon, at a merely facultative stop? Surely it ends rather at the station.
  3. That grants permission or power to do something.
  4. Able to perform a particular life function, or to live generally, in more than one way.
    — facultative feeder
  5. At which a given function is positive.
    — For then it is seen, as before, that it is the points outside the two sheets which are facultative, and not the points between the surface and the touching plane.

词形变化

more facultative comparative most facultative superlative

词汇关系

衍生词
facultatively facultativeness facultativity nonfacultative

词源

From French facultatif. By surface analysis, faculty + -ative.
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