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.
About 70% of morphine is used to make other opioids such as hydromorphone, oxycodone, heroin, and methadone. It is a Schedule II drug in the United States, Class A in the United Kingdom, and Schedule I in Canada.orphine is primarily used to treat both acute and chronic severe pain. It is also used for pain due to myocardial infarction and for labor pains. However, concerns exist that morphine may increase mortality in the setting of non ST elevation myocardial infarction.