noun
A deep, straight-sided pot used for making stock, boiling pasta, or cooking large quantities.
寸胴鍋でたっぷりのスープを作った。
I made a large batch of soup in a stockpot.
鍋 is a general pot or pan, while 寸胴鍋 specifically refers to a tall, cylindrical stockpot.
寸胴 (straight-sided) + 鍋 (pot). The term describes the pot's cylindrical shape.