precursal

Adjective

not-comparable

Serving as a precursor or forerunner; coming before a later form.

Japanese Meaning

先行する / 先駆けの / 前触れの

The researcher identified a precursal signal in the data that suggested the onset of volcanic activity.

研究者は、火山活動の発生を示唆する前駆的な信号をデータから特定した。

Sense（1）

Serving as a precursor or forerunner; coming before a later form.