laboratoryjnej
Laboratoryjnej is a Polish grammatical form rather than a separate word with a distinct meaning. It is the feminine singular inflection of the adjective laboratoryjny (laboratory). This ending appears when the adjective modifies a feminine noun and agrees with it in grammatical case.
In practice, laboratoryjnej is used in the genitive, dative, and locative singular. For example, in the genitive
Laboratoryjnej appears frequently in scientific, technical, and administrative Polish texts where feminine nouns denote entities related
Overall, laboratoryjnej is a routine inflected form used to describe feminine nouns associated with laboratories, reflecting