乱らん泥でい流りゅうらんでいりゅうMeanings1nounturbidity currentA geological term for a sediment-laden underwater current that moves down a slope due to its higher density.乱らん泥でい流りゅうは海かい底てい峡きょう谷こくを通とおって深しん海かいに堆たい積せき