背骨・脊骨|せぼねsebone[0]heiban (flat)

1. nounspine; backbone; spinal column
   私の背骨せぼねの痛いたみはひどくなっています。↗

   The pain in my back is getting worse.

• Synonym脊椎せきついWrittenWritten/medical term for the spine; can also mean a single vertebra. 「背骨」 is the everyday word, also used figuratively for the backbone of an organization.
• Synonym脊柱せきちゅうWrittenWritten/medical term for the spinal column as a whole, as in 「脊柱側弯症」.

In everyday speech use 「背骨」, which also works figuratively for the backbone of an organization or way of thinking. In medical contexts use 「脊椎」 or 「脊柱」; 「脊椎」 can also mean a single vertebra.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

1. 脊椎動物せきついどうぶつの体からだの軸じくをなす骨格こっかく。脊柱せきちゅう。
2. （考え方かんがえかたなどの）中心ちゅうしん。中軸ちゅうじく。