elektronowym
Elektronowym is the instrumental singular form of the Polish adjective elektronowy. The base elektronowy is formed from the noun elektron (electron) with the typical Polish suffix -owy, producing an adjective related to electrons or, in some contexts, to electronics. In contemporary standard Polish, the more common adjective meaning “electronic” is elektroniczny. Elektronowy is relatively rare and tends to appear in older texts, in very technical or historical contexts, or in phrases where emphasis is on relations to electrons rather than on electronic devices.
In Polish, adjectives decline for gender, number, and case. The instrumental singular form elektronowym is used
Overall, elektronowy serves primarily as a linguistics- or history-oriented variant within Polish grammar or specialized terminology.