1. of, relating to, or involving diffusion; characterized by the spreading or scattering of particles, molecules, or substances through a medium
Usage: technical; commonly used in chemistry, physics, and materials science

Examples

• The diffusional process allows oxygen molecules to move from areas of high concentration to areas of low concentration.
• Diffusional barriers in the cell membrane regulate the movement of certain substances.
• Engineers studied the diffusional behavior of gases in the porous material.
• The diffusional rate increased significantly when the temperature was raised.
• Diffusional transport is essential for nutrient distribution in biological systems.