alarm substance

Noun

(zoology) chemical given off from the skin of a fish after injury that warns nearby fish of danger.

Japanese Meaning

（動物学）魚が損傷を受けた際に皮膚から放出され、近くの魚に危険を知らせる化学物質

When a minnow is injured, the alarm substance released from its skin causes nearby fish to flee.

ミノーが傷つくと、皮膚から放出される警報物質が周囲の魚に危険を知らせ、逃げさせます。

Sense（1）

(zoology) chemical given off from the skin of a fish after injury that warns nearby fish of danger.

alarm substances

（ plural ）