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• n  (biology) a hypothetical force (not physical or chemical) once thought by Henri Bergson to cause the evolution and development of organisms

• vital force
• vitality
• elan vital

News & Articles

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• Celebration of radio personality Bill Bailey's life planned to remember popular broadcaster
  Bill Bailey once called radio his "life force." See Bailey at the mike in this video tribute.
  June 18, 2013 - The Grand Rapids Press