Crossword Genius

A watertight chamber used for carrying out construction work under water (7)

Ross

I believe the answer is:

caisson

(Other definitions for caisson that I've seen before include "Structure excluding water from construction" , "So I scan the ammunition wagon" , "Water-excluding case" , "watertight chamber" .)

I've seen this clue in The Independent.
Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.