refine [refined, refining, refines](to reduce to a fine, unmixed, or pure state; to free from impurities; to free from dross or alloy) verb [UK: rɪ.ˈfaɪn] [US: rə.ˈfaɪn]
refinaria noun {f}
refinery [refineries](building used to produce refined products) noun [UK: rɪ.ˈfaɪ.nə.ri] [US: rə.ˈfaɪ.nə.ri]