A substance or drug that causes delirium or hallucinations.
From Latin 'delirare' with the suffix '-ant' indicating something that performs an action, used in pharmacology and toxicology to describe mind-altering substances.
Certain plants like datura and jimsonweed are classified as deliriants—they cause a uniquely terrifying type of hallucination where users can't tell what's real, unlike other psychedelics.
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