läpäisemissä

läpäisemissä is a Finnish word that translates to "in penetration" or "during penetration." It is the inessive plural case of the noun läpäisy, meaning penetration. This grammatical form is used to indicate a state of being within or inside something during the act of passing through it. For example, one might use läpäisemissä to describe an object being in the process of passing through a barrier, or a feeling being felt during a specific experience.

The word läpäisemissä is not commonly used in everyday conversation but can be found in more technical or descriptive contexts, particularly in scientific or engineering fields where precise descriptions of physical processes are important. It might also appear in literary works where a more nuanced expression of movement or sensation is desired. The grammatical structure of Finnish, with its extensive case system, allows for such specific and context-dependent word forms. Understanding the nuances of these cases, like the inessive plural, is crucial for a full comprehension of the Finnish language.