facultative

  1. Adjective.  Of or relating to faculty, especially to mental faculty.
  2. Adjective.  Not obligate; optional, discretionary or elective.
  3. Adjective.  That grants permission or power to do something.
  4. Adjective.  (biology) Able to grow in or outside of a host or host cell.

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This entry was last updated on RefTopia from its source on 3/20/2012.