Durchlassig

"Durchlassig" is an adjective in the German language that translates to "permeable" or "porous" in English. It is used to describe materials, substances, or structures that allow the passage of liquids, gases, or other substances through them. The term is often employed in scientific, technical, and everyday contexts to describe the ability of a material to transmit or absorb substances.

For example, a durchlassiger Filter (permeable filter) is one that allows liquids or gases to pass through it, while a durchlassige Membran (porous membrane) permits the passage of certain molecules or ions. In a more general sense, the term can be used to describe the permeability of a substance, such as a durchlassige Haut (porous skin) that allows sweat to evaporate.

The concept of durchlassigkeit is closely related to the properties of diffusion and osmosis, which are fundamental processes in biology and chemistry. Understanding the durchlassigkeit of materials is crucial in various fields, including medicine, environmental science, and materials engineering.