| 释义 |
WordReference Random House Unabridged Dictionary of American English © 2024fac•ul•ta•tive (fak′əl tā′tiv),USA pronunciation adj. - conferring a faculty, privilege, permission, or the power of doing or not doing something:a facultative enactment.
- left to one's option or choice;
optional:The last questions in the examination were facultative. - that may or may not take place;
that may or may not assume a specified character. - Ecology[Biol.]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 (opposed to obligate).
- of or pertaining to the faculties.
- Neo-Latin facultātīvus. See faculty, -ive
- 1810–20
Collins Concise English Dictionary © HarperCollins Publishers:: facultative /ˈfækəltətɪv/ adj - empowering but not compelling the doing of an act
- that may or may not occur
- able to exist under more than one set of environmental conditions
- of or relating to a faculty
ˈfacultatively adv |