潜せん函かんせんかんMeanings1nouncaissonA watertight chamber used in underwater construction, such as bridge foundations or tunnels. Technical term in civil engineering.橋きょう脚きゃくの建けん設せつには潜せん函かん工こう法ほうが用もちいられた。The caisson method was used for the construction of the bridge piers.
