This is the 5315th most frequent Japanese word.
flashpoint
In Japanese, "flashpoint" (発火点, はっかてん) refers to the temperature at which a substance ignites, or metaphorically, a critical moment leading to conflict.
閃光点 (flashpoint) is used in a scientific context to describe the critical temperature inducing flames.
閃光点は炎が発生する最低温度を指します。
A flashpoint refers to the minimum temperature at which flames occur.
閃光点 (flashpoint) is metaphorically applied here to describe a pivotal moment of heightened intensity.
その映画のクライマックスはストーリーの閃光点でした。
The climax of that movie was the flashpoint of the story.
閃光点 (flashpoint) illustrates a critical breaking point or moment of escalation in a conflict.