Science Dictionary
contagious   (kən-tā'jəs)  Pronunciation Key 
  1. Capable of being transmitted by direct or indirect contact, as an infectious disease.

  2. Bearing contagion, as a person or animal with an infectious disease that is contagious.

Our Living Language  : A contagious disease is one that can be transmitted from one living being to another through direct or indirect contact. Thus the flu, which can be transmitted by coughing, and cholera, which is often acquired by drinking contaminated water, are contagious diseases. Although infectious is also used to refer to such diseases, it has a slightly different meaning in that it refers to diseases caused by infectious agents—agents such as viruses and bacteria that are not normally present in the body and can cause an infection. While the notion of contagiousness goes back to ancient times, the idea of infectious diseases is more modern, coming from the germ theory of disease, which was not proposed until the later nineteenth century. Contagious and infectious are also used to refer to people who have communicable diseases at a stage at which transmission to others is likely.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source
Previous Definition: anti-consumer
Next Definition: anti-culture
Words Near: anti-contagious
More from
Synonyms and Antonyms for anti-contagious
More from
Search for articles containing anti-contagious
More from Translator Word FAQs presents 366 FAQs, incorporating some of the frequently asked questions from the past with newer queries.

Copyright © 2015, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature