Jisho

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(SS-429)
Wikipedia definition
1. USS Unicorn (SS-429)USS Unicorn (SS-429), a Balao-class submarine, was the first submarine of the United States Navy to be given that name for the narwhal, an Arctic marine cetacean with a single tusk suggesting the horn of a unicorn and therefore sometimes called the "sea unicorn. " She was never built.
Read “USS Unicorn (SS-429)” on English Wikipedia
Read “ユニコーン (SS-429)” on Japanese Wikipedia
Read “USS Unicorn (SS-429)” on DBpedia

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