1. existing or occurring before the development of life or biological processes
Usage: scientific

Examples

• Scientists study prebiological chemical reactions that may have led to the origin of life.
• The prebiological Earth had a very different atmosphere than today.
• Researchers investigate prebiological evolution of organic molecules.
• The prebiological phase lasted billions of years before the first organisms appeared.
• Prebiological conditions on early Earth included intense radiation and volcanic activity.
• Understanding prebiological chemistry helps explain how life began.