| 释义 |
Adjective: facultative 'fakul`teytiv [N. Amer], fakultutiv [Brit]- Of or relating to the mental faculties
- Able to exist under more than one set of conditions
"a facultative parasite can exist as a parasite or a saprophyte" - Granting a privilege or permission or power to do or not do something
"a facultative enactment" - Not compulsory
"facultative courses in the sciences"
See also: enabling, faculty, optional Antonym: obligate |