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typhoid fever

(Encyclopedia) typhoid fever acute, generalized infection caused by Salmonella typhi. The main sources of infection are contaminated water or milk and, especially in urban communities, food handlers…

sawmill

(Encyclopedia) sawmill, installation or facility in which cut logs are sawed into standard-sized boards and timbers. The saws used in such an installation are generally of three types: the circular…

conglomerate, in business

(Encyclopedia) conglomerate, corporation whose asset growth, often very rapid, comes largely through the acquisition of, or merger with, other firms whose products are largely unrelated to each other…

prion

(Encyclopedia) prionprionprēˈŏn [key], abnormal form of a protein found in mammals, now generally believed to cause a group of diseases known as prion diseases or transmissible spongiform…

anabolic steroid

(Encyclopedia) anabolic steroidanabolic steroidănˌəbŏlˈĭk stĕrˈoid, stĭrˈ– [key] or androgenic steroidandrogenic steroidănˌdrōjĕnˈĭk [key], any of a group of synthetic derivatives of testosterone…

cortisone

(Encyclopedia) cortisonecortisonekôrˈtĭsōnˌ [key], steroid hormone whose main physiological effect is on carbohydrate metabolism. It is synthesized from cholesterol in the outer layer, or cortex, of…

growth hormone

(Encyclopedia) growth hormone or somatotropingrowth hormonesōmătˌətrōˈpən [key], glycoprotein hormone released by the anterior pituitary gland that is necessary for normal skeletal growth in humans (…

muscular dystrophy

(Encyclopedia) muscular dystrophymuscular dystrophydĭsˈtrōfē [key], any of several inherited diseases characterized by progressive wasting of the skeletal muscles. There are five main forms of the…

tuberculosis

(Encyclopedia) tuberculosis (TB), contagious, wasting disease caused by any of several mycobacteria. The most common form of the disease is tuberculosis of the lungs (pulmonary consumption, or…

City of Philadelphia v. New Jersey (1978)

Case SummaryCities, including Philadelphia, and landfill operators, sued to challenge a New Jersey law that prevented out-of-State waste from being treated or disposed of within New Jersey.…