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clubroot

(Encyclopedia)clubroot, disease of cabbages, turnips, radishes, and other plants belonging to the family Cruciferae (or Brassicaceae; mustard family). It is induced by a plasmodial slime mold that attacks the roots...

Rocky Mountain spotted fever

(Encyclopedia)Rocky Mountain spotted fever, infectious disease caused by a rickettsia. The bacterium is harbored by wild rodents and other animals and is carried by infected ticks of several species that attach the...

typhus

(Encyclopedia)typhus, any of a group of infectious diseases caused by microorganisms classified between bacteria and viruses, known as rickettsias. Typhus diseases are characterized by high fever and an early onset...

Neher, Edwin

(Encyclopedia)Neher, Edwin, 1944–, German biophysicist, Ph.D. Technical Univ. of Munich, 1970. He has been a researcher at the Max Planck Institute for Biophysical Chemistry, Göttingen, Germany, since 1972. Nehe...

Alvin

(Encyclopedia)Alvin, city (2020 pop. 27,098), Brazoria co., S Tex.; inc. 1893. The city is chiefly residential but is near an agricultural area where rice, cotton, soybeans, and pecans are raised. Indus...

Russell, Henry Norris

(Encyclopedia)Russell, Henry Norris, 1877–1957, American astronomer, b. Oyster Bay, N.Y., grad. Princeton, 1897. In 1902 he went to Cambridge, England, to study. He returned to Princeton in 1905, was professor of...

monoclonal antibody

(Encyclopedia)monoclonal antibody, an antibody that is mass produced in the laboratory from a single clone and that recognizes only one antigen. Monoclonal antibodies are typically made by fusing a normally short-l...

asthma

(Encyclopedia)asthma ăzˈmə, ăsˈ– [key], chronic inflammatory respiratory disease characterized by periodic attacks of wheezing, shortness of breath, and a tight feeling in the chest. A cough producing sticky...

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