せぼね 背骨 Common word LinksSentence search for 背骨Sentence search for せぼねSentence search for 脊骨Kanji details for 背 and 骨Edit in JMdict Noun1. spine; backbone; spinal columnOther forms脊骨 【せぼね】Notes脊骨: Rarely-used kanji form. Discussions Log in to talk about this word.