The protrusion that protrudes from the center of the underside of the sternum of birds, like the keel of a ship. The pectoral muscles that move the wings are attached to it. Source: About Shogakukan Digital Daijisen Information | Legend |
鳥類の胸骨の下面中央に、船の竜骨のように突き出ている突起。翼を動かす胸筋が付着する。胸峰。
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