einewtonisen
The term "einewtonisen" does not correspond to any recognized scientific, technical, or commonly used term in English or any other major language. It is possible that this term is a misspelling, a neologism, or a term specific to a very niche context that is not widely documented.
If "einewtonisen" is intended to relate to physics, it might be a portmanteau or a phonetic spelling
Without further context or clarification on the origin and intended meaning of "einewtonisen," it is impossible