noun \ˌhī-drō-ˈkō-ˌdōn\

Definition of HYDROCODONE

: a habit-forming compound derived from codeine and administered in the form of its bitartrate C18H21NO3·C4H6O6 usually in combination with other drugs (as acetaminophen) as an analgesic or cough sedative—called also dihydrocodeinone; see hycodan, vicodin

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