Plural of atmolysis; instances of the separation of gases through a porous membrane.
From 'atmolysis' (from Greek 'atmos' meaning vapor/air plus 'lysis' meaning loosening/separation). This is a technical chemistry term describing how different gases pass through porous barriers at different rates.
Atmolysis was crucial in early chemistry—it's how scientists could separate and identify different gases and understand that air wasn't a single element but a mixture of distinct substances with different behaviors.
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