noun, noun or participle which takes 'suru'
diving; submersion; descending underwater
Technical or formal term for descending underwater, often used in contexts like submarine operations or deep-sea diving. Less common in everyday conversation than 潜水 (せんすい).
潜水艦が水深200メートルまで潜降した。
The submarine dived to a depth of 200 meters.
潜水 is the common word for 'diving' or 'going underwater', used in everyday contexts like scuba diving. 潜降 is more technical and emphasizes the act of descending, often used for submarines or specialized equipment.
Compound of 潜 (せん, 'submerge, hide') and 降 (こう, 'descend'). The exact historical derivation is uncertain, but the kanji combination logically conveys 'descending while submerged'.