잠망경Top 20000MeaningsNoun1. periscope (viewing device)PronunciationjammanggyeongExamples1아이는 잠수함에 달린 잠망경을 보고 초식공룡 목을 닮았다고 말했다.After seeing the periscope attached to the submarine, the child said that it looked like the neck of a herbivorous dinosaur.