1. The process by which particles or molecules spread from an area of high concentration to an area of low concentration.
Usage: commonly used in chemistry and physics
2. The act or process of spreading or distributing something widely.
3. The spreading of light or other radiation in many directions, especially by reflection or scattering.
Usage: used in physics and optics

Examples

• The diffusions of oxygen through the cell membrane occur naturally over time.
• Scientists studied the diffusions of pollutants in the atmosphere.
• The diffusions of new ideas through social media happen rapidly.
• Light diffusions create soft shadows in the photograph.
• Water diffusions across the semipermeable membrane demonstrate osmosis.
• The diffusions of cultural practices spread throughout the region.
• Thermal diffusions in metals increase with higher temperatures.