とうこつ

noun

橈骨: (anatomy) radius - (The long bone in the forearm, on the side of the thumb.) / 頭骨: (anatomy) skull, cranium - (The main bone of the head.)

とうこつが必要な状況になりました。

We have come to a situation where negotiation is necessary.

意味（1）

橈骨: (anatomy) radius - (The long bone in the forearm, on the side of the thumb.)

意味（2）

頭骨: (anatomy) skull, cranium - (The main bone of the head.)