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mercury poisoning
(Encyclopedia)mercury poisoning, tissue damage resulting from exposure to more than trace amounts of the element mercury or its compounds. Elemental mercury (the silver liquid familiar from thermometers) is the mos...parasite
(Encyclopedia)parasite, plant or animal that at some stage of its existence obtains its nourishment from another living organism called the host. Parasites may or may not harm the host, but they never benefit it. T...dysentery
(Encyclopedia)dysentery dĭsˈəntĕrˌē [key], inflammation of the intestine characterized by the frequent passage of feces, usually with blood and mucus. The two most common causes of dysentery are infection wit...heart, in anatomy
(Encyclopedia) CE5 Cross section of heart, with arrows indicating direction of blood flow heart, muscular organ that pumps blood to all parts of the body. The rhythmic beating of the heart is a ceaseless activit...Raglan, Fitzroy James Henry Somerset, 1st Baron
(Encyclopedia)Raglan, Fitzroy James Henry Somerset, 1st Baron, 1788–1855, British general. He entered the army in 1804 and was made (1814) a lieutenant colonel for his services on the duke of Wellington's staff i...plant breeding
(Encyclopedia)plant breeding, science of altering the genetic pattern of plants in order to increase their value. Increased crop yield is the primary aim of most plant-breeding programs; advantages of the hybrids a...senility
(Encyclopedia)senility sənilˈətē [key], deterioration of body and mind associated with old age. Indications of old age vary in the time of their appearance. Stooped posture, wrinkled skin, decrease in muscle st...La Paz, city, Mexico
(Encyclopedia)La Paz lä päs [key], city (1990 pop. 137,641), capital and largest city of Baja California Sur state, W Mexico. A tourist spot and transportation hub for the southern Baja peninsula, La Paz was firs...Kaposi's sarcoma
(Encyclopedia)Kaposi's sarcoma käpˈəshēˌ, kəpōˈsē [key], a usually fatal cancer that was considered rare until its appearance in AIDS patients. First described by an Austro-Hungarian physician, Moritz Kapo...inoculation
(Encyclopedia)inoculation, in medicine, introduction of a preparation into the tissues or fluids of the body for the purpose of preventing or curing certain diseases. The preparation is usually a weakened culture o...Browse by Subject
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