河か川せん学がく

noun

potamology; fluvial science

Academic field studying rivers and fluvial processes.

• 河か川せん学がくは、河か川せんの地ち形けいや水みずの流ながれを研けん究きゅうする学がく問もんです。

  Potamology is the study of river landforms and water flow.