determinant
noun
1. a factor which decisively affects the nature or outcome of something: 何かの性質や結果に決定的に影響する要因 ｟かたく｠ 決定要因(要素, 因子).
pure force of will was the main determinant of his success.: 純粋な意志の力が彼の成功の主な要因だ
#Biology a gene or other factor that determines the character and development of a cell or group of cells in an organism, a set of which forms an individual's idiotype. : 個体のイディオタイプを形作る集合で、有機体の中の形質を決定したり細胞を発達させる遺伝子もしくは他の因子 決定子、決定因子
(医) 決定基
https://gyazo.com/586869efe8e39cd9d555630a8ec86dd6