paristomaisen
Paristomaisen is a term that appears to be a Finnish neologism or a very niche technical term. Direct translation of the Finnish words "paristo" (battery) and "-mainen" (like, -like) suggests a meaning related to being "battery-like" or "similar to a battery." This could refer to a device that functions in a similar way to a battery, perhaps by storing and releasing energy, or it could describe a characteristic of something that resembles a battery in its physical form or properties.
Without further context, it is difficult to pinpoint a precise definition. In a technological context, it might