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

• scrappy
• scraps
• scratch
• scratch along
• scratch awl
• scratch file
• scratch line
• scratch off
• scratch out
• scratch paper
• scratch race
• scratch sheet
• scratch test
• scratch up
• scratcher
• scratchily
• scratchiness
• scratching
• scratchpad
• scratchy
• scraunch
• scrawl
• scrawler
• scrawniness
• scrawny