noun
dead point; dead center
Mechanical engineering term for the position in a linkage or engine cycle where no effective force is transmitted; also used metaphorically for a standstill or impasse.
エンジンのピストンが死点に達すると、クランクを回す力が伝わらなくなる。
When the engine piston reaches dead center, the force to turn the crank is no longer transmitted.
交渉は完全に死点に達し、双方とも譲らなかった。
The negotiations reached a complete deadlock, and neither side would budge.