1. (biology) a hypothetical force (not physical or chemical) once thought by Henri Bergson to cause the evolution and development of organisms
   - life force, vital force, vitality

Type of: force

• Jalalabad
• jalap
• jalapeño
• jalapeño pepper
• jalopy
• jalousie
• jam
• jam session
• jam-packed
• Jamaat ul-Fuqra
• Jamaica
• Jamaica apple
• Jamaica bayberry
• Jamaica caper tree
• Jamaica dogwood
• Jamaica honeysuckle
• Jamaica quassia
• Jamaica rum
• Jamaica shorts
• Jamaica sorrel
• Jamaican
• Jamaican capital
• Jamaican cherry
• Jamaican dollar
• jamais vu