From Longman Dictionary of Contemporary Englishconning towerˈconning ˌtower noun [countable] TTW technical the structure on top of a submarine (=underwater ship)
Examples from the Corpus
conning tower• The orange conning tower sits abandoned on the dock amid odds and ends of superstructure.• Then the chief stepped forward and stood by the conning tower hatch.• Above our heads in the conning tower.Origin conning tower (1800-1900) con “to look at, study” ((15-19 centuries)), from Old English cunnan; → CAN1 