A thin leaflike structure, e.g., in some rocks or in the cerebellum of the brain.→ folia
- ‘This folium was first discussed by Descartes in 1638.’
- ‘The Latin stem for these words is folium, a neuter noun meaning leaf.’
- ‘Immediately above the lingula, four or five folia constitute the central lobule of the vermis, which is continuous laterally with the ala of the central lobule.’
- ‘In case 3, however, we noted Purkinje neuronal drop-out, gliosis, and proliferation of microglial nodules in the cerebellar folia.’
- ‘After that, Zhuang carves out seven leaves from the folium.’
Mid 18th century: from Latin, literally leaf.