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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]
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