IPA: /ˌfɪziəˈɡræfɪkəl/
KK: /fɪziəˈgræfɪkəl/
Relating to the physical features and processes of the Earth's surface, including landforms, climate, and ecosystems.
The physiographical study of the region revealed diverse landscapes and ecosystems.
Physiographical → It is formed from "physio-" (from Greek "phusis", meaning nature) and "graphia" (from Greek "grapho", meaning to write or describe). The word "physiographical" refers to the description or writing about the natural features of the earth.
Think of 'nature' ('physio-') being 'described' ('graphia') — that's why physiographical means describing the natural features of the earth.