formulă empirică angolul

empirical formula [empirical formulas]▼(a notation indicating the ratios of the various elements present in a compound)
noun
[UK: ɪm.ˈpɪ.rɪk.l̩ ˈfɔː.mjʊ.lə] [US: ˌem.ˈpɪ.rɪk.l̩ ˈfɔːr.mjə.lə]