びこつ 尾てい骨 LinksSentence search for 尾てい骨Sentence search for びていこつSentence search for 尾骶骨Sentence search for ビテイコツKanji details for 尾 and 骨Edit in JMdict Noun1. coccyx; tailboneAnatomyOther forms尾骶骨 【びていこつ】、ビテイコツNotes尾骶骨: Out-dated kanji or kanji usage. Discussions Log in to talk about this word.