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bn:00061627n
Noun Concept
Categories: Articles containing potentially dated statements from 2009, Articles with short description, All articles containing potentially dated statements, 1902 introductions, Optical devices
EN
periscope  Aircraft periscope  Demo periscope  golf mirror  Golf Periscope
EN
An optical instrument that provides a view of an otherwise obstructed field WordNet 3.0
Definitions
Relations
Sources
EN
An optical instrument that provides a view of an otherwise obstructed field WordNet 3.0 & Open English WordNet
A periscope is an instrument for observation over, around or through an object, obstacle or condition that prevents direct line-of-sight observation from an observer's current position. Wikipedia
Device for viewing things past obstacles. Wikipedia Disambiguation
Instrument for observation from a concealed position Wikidata
IS A
optical instrument
PART OF
submarine
HAS INSTANCE
Clearwater Periscope lens system
Nistri periscope
DESCRIBED BY SOURCE
Armenian Soviet Encyclopedia
Otto's encyclopedia
Sytin Military Encyclopedia
USE
observation
USED BY
military
navy
WordNet 3.0 & Open English WordNet
EN
periscope
Wikipedia
EN
periscope
Wikidata
EN
periscope
Wikipedia Redirections
EN
Aircraft periscope, Demo periscope, golf mirror, Golf Periscope, M28 periscopic sight, periscope depth, periscopes, submarine periscope, vision block

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