liemikaasuun
Liemikaasuun is the illative case form of the Finnish noun liemikaasu, meaning a liquefied gas. In Finnish, the illative case marks direction toward or into something, so liemikaasuun would be used to indicate movement into a liquefied gas environment or into a container associated with liquid gas. As a grammatical form, it is not a separate concept but a specific inflected variant of liemikaasu.
Liemikaasu is a compound noun formed from liemi (liquid or broth in a metaphorical sense) and kaasu
In technical and scientific Finnish, liemikaasuun appears in contexts where processes involve liquefied gases, their storage,