nerostných
Nerostných is a term that appears to be a grammatical form or a typo rather than a distinct concept or entity. In the Czech language, the word "nerost" translates to "mineral." The ending "-ných" suggests a genitive plural or a similar declensional form, implying "of minerals" or "mineral's." Therefore, "nerostných" likely functions as an adjective modifying a noun in the genitive plural case, such as "vzorky nerostných" (samples of minerals) or "vlastnosti nerostných" (properties of minerals). Without further context, it is difficult to ascertain a specific meaning beyond this grammatical interpretation. If "nerostných" was intended to refer to a specific scientific or technical term, it is not a widely recognized one. It is possible that it is a misspelling of a related word or a very specialized term within a niche field. Further clarification on the intended usage would be necessary to provide a more precise explanation.