foliumPronunciation: /ˈfəʊlɪəm/Definition of folium noun (plural folia /ˈfəʊlɪə/) technical a thin leaf-like structure, e.g. in some rocks or in the cerebellum of the brain. Origin: mid 18th century: from Latin, literally 'leaf'folium in other Oxford dictionaries Definition of folium in the US English dictionary
