poisonous substance

Translations
ядовитое вещество
The laboratory was careful to handle the poisonous substance with extreme caution.
Лаборатория осторожно обращалась с ядовитым веществом.
Definitions
A poisonous substance is a material that can cause harm, injury, or death to living organisms when ingested, inhaled, or absorbed through the skin, often by disrupting biological processes or causing toxic reactions.