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hedonism

(Encyclopedia) hedonismhedonismhēˈdənĭzˌəm [key] [Gr.,=pleasure], the doctrine that holds that pleasure is the highest good. Ancient hedonism expressed itself in two ways: the cruder form was that…

bushido

(Encyclopedia) bushidobushidob&oobreve;shˈĭdō, b&oomacr;ˈshĭdō [key] [Jap.,=way of the warrior], code of honor and conduct of the Japanese nobility. Of ancient origin, it grew out of the old…

sickle cell disease

(Encyclopedia) sickle cell disease or sickle cell anemia, inherited disorder of the blood in which the oxygen-carrying hemoglobin pigment in erythrocytes (red blood cells) is abnormal. This “…

rotavirus

(Encyclopedia) rotavirus, double-stranded RNA virus, genus Rotavirus, with a wheellike appearance that can cause severe watery diarrhea and vomiting, sometimes leading to severe dehydration and death…

pinworm

(Encyclopedia) pinworm, roundworm, Enterobius vermicularis, worldwide in distribution and the most common source of worm infestation of humans in the United States. Children are more commonly…

taboo

(Encyclopedia) taboo or tabutabooboth: tăb&oomacr;ˈ, tə– [key], prohibition of an act or the use of an object or word under pain of punishment. Originally a Polynesian word, taboo can apply to…

hypothalamus

(Encyclopedia) hypothalamushypothalamushīˌpəthălˈəməs [key], an important supervisory center in the brain, rich in ganglia, nerve fibers, and synaptic connections. It is composed of several sections…

iritis

(Encyclopedia) iritisiritisīrīˈtĭs [key], inflammation of the iris, the pigmented portion of the eye surrounding the pupil. The condition is sometimes associated with diabetes, with rheumatic…

insomnia

(Encyclopedia) insomnia, abnormal wakefulness or inability to sleep. The condition may result from illness or physical discomfort, or it may be caused by stimulants such as coffee or drugs. However,…

coccidioidomycosis

(Encyclopedia) coccidioidomycosiscoccidioidomycosiskŏksĭdˌēoiˌdōmīkōˈsĭs [key], systemic fungus disease (see fungal infection) endemic to arid regions of the Americas, contracted by inhaling dust…