肋あばら骨ぼね

noun

rib

The anatomical rib bone. Both readings あばらぼね and ろっこつ are used; あばらぼね is more common in everyday speech, while ろっこつ is often used in medical or technical contexts.

• 転ころんで肋あばら骨ぼねを折おってしまった。

  I fell and broke a rib.

• 肋あばら骨ぼねのあたりが痛いたい。

  It hurts around my ribs.

noun

frame (of a ship)

Only with reading ろっこつ

Technical term for the rib-like structural frame of a ship's hull. Restricted to the reading ろっこつ.

• 船ふねの肋ろっ骨こつは、船せん体たいの強きょう度どを保たもつ重じゅう要ような部ぶ分ぶんです。

  The ship's frames are an important part that maintains the hull's strength.