A chemical compound derived from morphine that has stimulating effects and is found in certain plants and fungi.
From 'apomorphine' shortened; 'apo-' means 'away from' in Greek, indicating this is morphine altered by removal of a water molecule, creating a new compound in 1869.
Aporphin is what you get when morphine loses water through a chemical reaction—it's like morphine's energetic cousin that actually wakes you up instead of putting you to sleep, which is why it was used as a medical emetic.
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