Opium is dried out tree-milk obtained by slashing immature unripe cocoons of opium poppy. It is used in medicine and especially in the preparation of illegal narcotic drugs.
Citing this page:
Generalic, Eni. "Opium." Croatian-English Chemistry Dictionary & Glossary. 29 June 2022. KTF-Split. {Date of access}. <https://glossary.periodni.com>.