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单词 facultative
释义 fac·ul·ta·tive
\ˈfakəlˌtād.iv\ adjective
Etymology: French facultatif, from faculté faculty + -atif -ative
1.
 a. : having relation to or concerned with the grant of a privilege
  < facultative legislation or enactments >
  : involving permission rather than compulsion
  < the licensing provision is purely facultative >
 b. of money : used for convenience and having no status as legal tender
  < at one time local subdivisions of France issued facultative coins of small value >
 c. : optional
  < facultative courses in the sciences >
2.
 a. : having characteristics that permit alternate responses (as of doing or not doing or of happening or not happening) under different conditions
  < there is no facultative plurality in the mind; it is a single organ of true judgment — James Martineau >
  < facultative homosexuals >
 b. : able to live or thrive under more than one set of conditions
  < certain facultative parasites that are capable of a free-living saprophytic existence >
  < many bacteria are facultative anaerobes >
3. : of or relating to the faculties
4. : nondistinctive
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更新时间:2024/12/23 20:15:50