1. The plural of diffusiveness; the quality or state of being diffusive; the tendency to spread out, scatter, or disperse widely.
Usage: Plural form of an abstract noun; Formal or technical usage

Examples

• The diffusivenesses of various gases differ based on molecular weight and temperature.
• The artist explored the diffusivenesses of watercolor pigments across different paper types.
• In physics, diffusivenesses are measured to understand how substances spread through media.
• The diffusivenesses of light through frosted glass create soft, even illumination.
• Researchers compared the diffusivenesses of heat in different materials.