also: ひさんなまり
noun
lead arsenate
Inorganic compound formerly used as an insecticide; now largely banned due to toxicity.
ヒ酸鉛はかつて農薬として使われていた。
Lead arsenate was once used as a pesticide.
Kanji spelling using 砒 (arsenic); less common in modern usage.
Compound of ヒ酸 (arsenic acid) and 鉛 (lead), reflecting its chemical composition.