Pharmaceutically, a non-endogenous compound in the
field of biological/organic
chemistry. Essentially meaning, the unnatural occurence or man
made molecule.
Oxymorphone is a semi synthetic compound derived from naturally occurring thebaine and
morphine found within the opium poppy
plant. Fentanyl, another opioid agonist is not derived from any endogenous compound; therefore it is considered a
fully synthetic chemical.