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

• Equisetales
• Equisetatae
• Equisetum
• Equisetum arvense
• Equisetum fluviatile
• Equisetum hyemale
• Equisetum hyemale robustum
• Equisetum palustre
• Equisetum robustum
• Equisetum Sylvaticum
• Equisetum variegatum
• equitable
• equitably
• equitant
• equitation
• equity
• equity credit line
• equivalence
• equivalent
• equivalent weight
• equivalent word
• equivalent-binary-digit factor
• equivalently
• equivocal
• equivocally