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

• biosafety level 3
• biosafety level 4
• bioscience
• bioscope
• biosecurity
• biosphere
• biostatistics
• biosynthesis
• biosynthetic
• biosystematic
• biosystematics
• biosystematy
• biota
• biotech
• biotechnological
• biotechnology
• bioterrorism
• biotic
• biotic community
• biotin
• biotite
• biotitic
• biotope
• biotype
• biotypic