Wiktionary(5.00 / 1 vote)Rate this definition: 1  deflection(Noun) The act of deflecting or something deflected. 2  deflection(Noun) The deviation of a needle or other indicator from its previous position.
1 Codeine use can be habit-forming even in regular doses. 2  Morphine is the most abundant opiate derived from the opium plant. 3  With hundreds of brand names, morphine is an analgesic drug that acts directly on the central nervous system.
A: Morphine is a narcotic pain medication that is used to treat moderate to severe pain. Some of the more common side effects of morphine are somnolence, constipation, nausea, dizziness, low blood pressure, euphoria, sweating, itching, and dry mouth.