noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   A crystalline morphine derivative that is a dopamine agonist, used as an emetic and is injected subcutaneously in the form of its hydrochloride C₁₇H₁₇NO₂·HCl·1/2H₂O to treat episodes of immobility associated with advanced Parkinson's disease. countable, uncountable
2. 2
   a morphine derivative that is not as strong as morphine; used as an emetic and in small doses as a sedative wordnet

Etymology

From apo- + morphine.