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Clostridium
(Encyclopedia) Clostridium, genus of gram-positive bacteria (see Gram's stain), several species of which cause significant, potentially deadly diseases in humans as a result of the toxins that each…drug poisoning
(Encyclopedia) drug poisoning, toxic effects caused by an administered drug. Worldwide more than 9 million natural and synthetic chemicals have been identified; fewer than 3000 cause more than 95% of…neuritis
(Encyclopedia) neuritisneuritisn&oobreve;rīˈtĭs, ny&oobreve;– [key], inflammation of a peripheral nerve, often accompanied by degenerative changes in nervous tissue. The cause can be…chigger
(Encyclopedia) chigger, minute, six-legged, reddish larva of the harvest mite, one of various red bugs widely distributed throughout the world and common in the S United States. Attaching itself by…croup
(Encyclopedia) croupcroupkr&oomacr;p [key], acute obstructive laryngitis in young children, usually between the ages of three and six. The manifestations are a high-pitched cough and difficulty…tenure, in education
(Encyclopedia) tenure, in education, a guarantee of the permanence of a college or university teacher's position, awarded upon successful completion of a probationary period, usually seven years.…attention deficit hyperactivity disorder
(Encyclopedia) attention deficit hyperactivity disorder (ADHD), formerly called hyperkinesis or minimal brain dysfunction, a chronic, neurologically based syndrome characterized by any or all of…mold
(Encyclopedia) mold, name for certain multicellular organisms of the various classes of the kingdom Fungi, characteristically having bodies composed of a cottony mycelium. The colors of molds are…dengue fever
(Encyclopedia) dengue feverdengue feverdĕngˈgē, –gā [key], acute infectious disease caused by four closely related viruses and transmitted by the bite of the female Aedes mosquito; it is also known…sea level
(Encyclopedia) sea level, the level of the sea, which serves as the datum used for measurement of land elevations and ocean depths. Theoretically, one would expect sea level to be a fixed and…Trending
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