przepuszczana

Przepuszczana is a feminine singular present passive participle (imiesłów przymiotnikowy bierny) formed from the verb przepuszczać (to let pass, to permit to pass, to permeate). It denotes an action seen from the perspective of the affected object and is used as an adjective or as part of a passive verbal construction. The form agrees with feminine singular nouns, for example substancja przepuszczana przez filtr.

Grammatical usage: In sentences it typically accompanies a feminine noun or functions predicatively after być: „Woda przepuszczana przez filtr jest czysta.” It can appear in various tenses as part of passive voice, and belongs to the category of passive participles that describe ongoing or resulting permeability rather than a completed action.

Context and semantics: The term is common in scientific and technical writing to describe processes where something is allowed to pass through or is permeable, such as filtration, diffusion, or membrane transport. It is closely related to related forms like przepuszczalny (permeable) and przepuszczanie (permeation). The choice between using the participle and a simple adjective often depends on stylistic considerations and the need to emphasize aspect or process.

Form and variants: Other gender-number forms include przepuszczany (masculine singular), przepuszczana (feminine singular, as shown), and przepuszczane (neuter or plural). In many contexts, a straightforward adjective like przepuszczalny or a passive construction with być may be preferred for clarity.

See also: imiesłów przymiotnikowy bierny; przepuszczalność; przepuszczanie.