Jisho

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Noun
1. baculum; os penis; penis bone
Wikipedia definition
2. BaculumThe baculum (also penis bone, penile bone or os penis) is a bone found in the penis of most placental mammals. It is absent in humans, but present in other primates, such as the gorilla and chimpanzee. The bone aids sexual intercourse.
Read “Baculum” on English Wikipedia
Read “陰茎骨” on Japanese Wikipedia
Read “Baculum” on DBpedia

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