facultative Meaning, Definition & Usage

  1. adjective of or relating to the mental faculties
  2. adjective able to exist under more than one set of conditions
    • a facultative parasite can exist as a parasite or a saprophyte
  3. adjective satellite granting a privilege or permission or power to do or not do something
    • a facultative enactment
  4. adjective satellite not compulsory
    • facultative courses in the sciences

WordNet