直ちょく接せつ要よう因いん

noun

direct cause; proximate cause

Technical term used in fields such as law, medicine, and risk analysis to distinguish the immediate trigger from underlying factors. Often contrasted with 至近要因 (proximate cause) or 間接要因 (indirect cause).

See also: 至近要因

• 事じ故この直ちょく接せつ要よう因いんは運うん転てん手しゅの居い眠ねむり運うん転てんだった。

  The direct cause of the accident was the driver falling asleep at the wheel.

• 感かん染せん症しょうの直ちょく接せつ要よう因いんは病びょう原げん体たいへの曝ばく露ろである。

  The direct cause of an infectious disease is exposure to the pathogen.