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[jen-er] /ˈdʒɛn ər/
Edward, 1749–1823, English physician: discoverer of smallpox vaccine.
Sir William, 1815–98, English physician and pathologist. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for Jenner
Contemporary Examples
Historical Examples
  • "Here's Jenner's old clerk come in, sir," said he to his master.

    The Channings Mrs. Henry Wood
  • She had made enquiry of Jenner as she came in, so as to satisfy herself.

    The White Lie William Le Queux
  • This latter is the cow-pox, from which Jenner derived the vaccine matter.

    Cattle and Their Diseases Robert Jennings
  • Jenner to dig sandstone for setting up my father's tombstone, at 5s.

  • "We could have done it a lot cheaper by just using ballast," said Jenner.

    Faithfully Yours Lou Tabakow
British Dictionary definitions for Jenner


Edward 1749–1823, English physician, who discovered vaccination by showing that injections of cowpox virus produce immunity against smallpox (1796)
Sir William. 1815–98, English physician and pathologist, who differentiated between typhus and typhoid fevers (1849)
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Jenner in Medicine

Jenner Jen·ner (jěn'ər), Edward. 1749-1823.

British physician and vaccination pioneer who found that smallpox could be prevented by inoculation with the substance from cowpox lesions.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Jenner in Science
British physician who pioneered the practice of vaccination. His experiments proved that individuals who had been inoculated with the virus that caused cowpox, a mild skin disease of cattle, became immune to smallpox. Jenner's discovery laid the foundations for the science of immunology.

Our Living Language  : In 1980 the World Health Organization declared that the deadly disease smallpox had been eradicated, an accomplishment attributed to the success of the smallpox vaccine. The vaccine had been developed almost 200 years earlier by the British physician Edward Jenner, who had based his work on a piece of folk wisdom from the countryside that few doctors had taken seriously: people who caught cowpox, a mild viral infection of cattle, never got smallpox. In 1796 Jenner proved the truth of this scientifically in a famous experiment he conducted on an eight-year-old boy named James Phipps. Jenner exposed Phipps to a person with cowpox, then two months later exposed him to smallpox (this would be considered unethical by today's standards). As Jenner expected, the boy warded off the smallpox without any complications. Prior to this, there existed a form of vaccination against smallpox that consisted of exposing people to a mild form of the disease. Although this method often worked, it was risky, and the exposed person sometimes died. Jenner, who devised the word vaccination from the Latin vacca, for "cow," is considered to be the father of immunology. He also did significant research on heart disease.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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