periscopic
Viewing around obstacles
Periscopic describes something relating to or resembling a periscope—the optical instrument that uses mirrors or prisms to see around obstacles or above surfaces.
The term often applies to lenses or vision systems designed for wide-angle viewing: periscopic sights on military vehicles, periscopic lenses in early cameras.
The word suggests seeing from a concealed or indirect vantage point.
Light-focusing curved glass
- eyepieceLens you look through
- prismLight-splitting optical element
- mirrorReflective viewing surface
- magnificationDegree of visual enlargement
reflection · refraction · viewer · scope · optical · tube · aperture · focal
Submarine's raised control structure
- U-boatUndersea warship from Germany
- torpedoPropelled undersea explosive
- sonarUnderwater detection by echoes
- depthDistance below surface
submerge · dive · hull · hatch · naval · underwater · stealth · warfare
Information-gathering before action
- spyingSecretly observing others
- monitoringOngoing observation of something
- espionageCovert intelligence gathering
- covertIntentionally concealed
observation post · lookout · scouting · intelligence · tracking · stakeout · clandestine · undercover
Raised above usual level
- peekFurtive brief look
- undetectedNot discovered yet
- line-of-sightUnobstructed path for vision
- obstructed viewVision impeded by obstacle
blind spot · barrier · trench · parapet
lens
Light-focusing curved glass
magnification · reflection · refraction · viewer · scope · optical · tube · aperture · focal · angled
conning tower
Submarine's raised control structure
- U-boatUndersea warship from Germany
- torpedoPropelled undersea explosive
- sonarUnderwater detection by echoes
depth · submerge · dive · hull · hatch · naval · underwater · stealth · warfare · wolfpack
reconnaissance
Information-gathering before action
- spyingSecretly observing others
- monitoringOngoing observation of something
- espionageCovert intelligence gathering
covert · observation post · lookout · scouting · intelligence · tracking · stakeout · clandestine · undercover · vantage
elevated
Raised above usual level
- peekFurtive brief look
- undetectedNot discovered yet
- line-of-sightUnobstructed path for vision
obstructed view · blind spot · barrier · trench · parapet
periscopicdirect
Undeviating or to guide
unmediated · line-of-sight · naked-eye · unaided · straight-line
periscopicexposed
Out in open
unconcealed · direct observation · overt · open · visible