See more synonyms on Thesaurus. 2002, 2001, 1995 by Houghton Medical drug dictionary pdf Company. Published by Houghton Mifflin Company. The muscular tube in vertebrates through which food passes from the pharynx to the stomach.
2005 by Houghton Mifflin Company. What does Tis the Season mean? Spleen definition, a highly vascular, glandular, ductless organ, situated in humans at the cardiac end of the stomach, serving chiefly in the formation of mature lymphocytes, in the destruction of worn-out red blood cells, and as a reservoir for blood. Already Deadly in Africa, Could Ebola Hit America Next? Regarded in medieval physiology as the seat of morose feelings and bad temper. An organ in vertebrate animals that in humans is located on the left side of the abdomen near the stomach. The spleen is mainly composed of lymph nodes and blood vessels.
In English, the noun “drug” is thought to originate from Old French “drogue”, possibly deriving later into “droge-vate” from Middle Dutch meaning “dry barrels”, referring to medicinal plants preserved in them. It is used to reduce the production of stomach acid. These medications are designated by the letter P on the label. The range of medicines available without a prescription varies from country to country. Nootropics are used to improve memory, concentration, thought, mood, learning, and many other things. Some nootropics are now beginning to be used to treat certain diseases such as attention-deficit hyperactivity disorder, Parkinson’s disease, and Alzheimer’s disease. Other designer drugs mimic the effects of psychoactive drugs.
Since the late 1990s there has been the identification of many of these synthesised drugs. Marijuana is a more mild form of cannabis than hashish. There may be an age restriction on the consumption and purchase of legal recreational drugs. The most widely used of these is alcohol.