Osmotically is an adverb that describes a process where molecules pass through a semipermeable membrane from an area of high concentration to low concentration. In scientific contexts, similar adverbs include diffusively and permaeably. Some synonyms that may be used in broader contexts are gradually, slowly, steadily, or progressively. In terms of physiological processes, phrases that could replace osmotically include osmotic pressure, osmotic concentration, and osmotic potential. In more general descriptions of movement or change, one might use words such as 'flow' or 'flux'. Regardless of the specific word choice, all of these adverbs and phrases suggest a process of movement and change that occurs over time and with regular but incremental steps.