atoommassas
Atoommassas is a term that appears in a limited set of educational glossaries and some science-fiction contexts to denote a unit of mass on the atomic scale. It is not an officially recognized unit in the International System of Units (SI) and does not appear in standard scientific literature as a defined quantity.
In sources that mention it, a single atoommassa is described with varying definitions, and there is no
Etymology-wise, the term is formed from "atom" and "mass," and in contexts that pluralize it, the form
See also: atomic mass unit (amu), dalton, kilogram, molecular mass.