atomiin

Atomiin is the illative singular form of the Finnish noun atomi, meaning into the atom or to the atom. In Finnish, illative forms express movement toward or into a location or object, and atomiin is used when the atom is the target or destination of an action.

The word atomi derives from the Greek atomos, via Latin atomus, and is widely used in scientific and philosophical contexts to refer to the smallest unit of matter. The illative is one of several location cases in Finnish, and its exact suffix varies with the stem; for atomi the illative singular is atomiin, while plural forms would be atomeihin.

In typical usage, atomiin appears in academic writing, textbooks, journals, and in literary or speculative texts that address atomic-scale phenomena. The form enables precise expression of directional movement or targeting within sentences, such as describing experiments, theoretical models, or discussions of atomic-scale processes.

See also Finnish grammar, illative case, atomi, atom.