#physics acronym
- Now (dialectal) — In popular and regional Romanian (specific to the Moldavian and Transylvanian dialects), a time adverb meaning 'now', 'at this moment', or 'immediately'; in physics and chemistry (as an international acronym often written 'amu'), it represents the atomic mass unit, structurally defined as one-twelfth of the mass of a carbon-12 atom.