läpäiseväksi

läpäiseväksi is the adessive plural form of the Finnish word läpäisevä. The root word, läpäisevä, is an adjective meaning "permeable," "penetrable," or "porous." Therefore, läpäiseväksi translates to "into permeable ones," "as permeable ones," or "to permeable ones" depending on the grammatical context.

In scientific and technical contexts, läpäisevä refers to the ability of a material or membrane to allow substances, such as liquids or gases, to pass through it. For example, a läpäisevä screen allows air to pass but not insects. A läpäisevä filter allows water to pass through but retains impurities. The degree of permeability can vary significantly, and materials are often described as having high or low permeability.

The adessive case in Finnish, indicated by the suffix -ksi when functioning as a resultative or purposive, suggests a transformation or destination. Thus, läpäiseväksi might appear in sentences describing something becoming permeable, or being intended for use as a permeable material. For instance, one might say a substance was treated *läpäiseväksi* (to become permeable), or a certain design was chosen *läpäiseväksi* (for its permeability). The specific meaning will be determined by the surrounding sentence structure and the intended communication.