periscope

• But he was looking at it through the lens of an attack periscope, and he shook off these disquieting thoughts, thoughts not permitted in a U-boat commander. —  Grey Wolf, Grey Sea
• There was a compressor aboard At night, when no one could observe, they extended the periscope--it had been elongated--to the surface and pumped air down it until the compression tanks were full The man pushed himself down into the hole, felt for the rope which led to the mooring chain, and worked along it. —  048 - The Derrick Devil
• But he did not see the tiny periscope, the little portable instrument, which Doc Savage always carried and which he was now using The burly man threw out his chest and stamped across the floor, manner reminiscent of the fierceness attributed to the pirates of olden days. —  048 - The Derrick Devil
• It was a periscope, a tiny thing which would hardly be observed. —  037 - The Metal Master
• Through the periscope, they saw the launch swerve back to the wharf, and hang there while objects the size of kegs were loaded aboard Monk aimed the searchlight at the wharf, then got under cover, and Doc switched the light on. —  064 - The Submarine Mystery

Used in the Same Context

Word Family