The quality or degree to which something can be diffused or spread throughout a medium.
From diffusible + -ity (suffix forming nouns of state or quality). Diffusible itself comes from Latin diffusus + -ible, creating a technical term primarily used in chemistry and physics.
Chemists use diffusibility to predict how quickly a gas will spread through air or how fast a dissolved substance will move through a solution—it's like measuring nature's eagerness to mix things up.
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