attenuated

weakened. Attenuated viruses are often used as vaccines because they can no longer produce disease but still stimulate a strong immune response, like that to the natural virus. Examples of attenuated virus vaccines include oral polio, measles, mumps, and rubella vaccines.
Found on http://www.translationdirectory.com/glossaries/glossary031.htm

attenuated

[adj] - (electronics) of an electrical signal
Found on http://www.webdictionary.co.uk/definition.php?query=attenuated

Attenuated

Attenuated: Weakened, diluted, thinned, reduced, weakened, diminished. The use of 'attenuated' in medicine is not new. In the 16th century, eating dried figs was claimed to attenuate the body fluids. Now 'attenuated' refers to procedures that weaken an agent of disease (a pathogen). An attenuated virus is a weakened, less vigorous virus. A vaccine ...
Found on http://www.medterms.com/script/main/art.asp?articlekey=13398

attenuated

<microbiology, virology> To reduce the virulence (infectivity) of a pathogenic microorganism. ... (27 Sep 1997) ...
Found on http://www.encyclo.co.uk/local/20973

Attenuated

• (a.) Made thin or less viscid; rarefied. • (imp. & p. p.) of Attenuate • (a.) Made thin or slender.
Found on http://thinkexist.com/dictionary/meaning/attenuated/

attenuated

Weakened or thinned. Attenuated strains of disease-causing bacteria and viruses are often used as vaccines. The weakened strains are used as vaccines because they stimulate a protective immune response while causing no disease or only mild disease in the person receiving the vaccine.
Found on http://www.cancer.gov/dictionary?expand=A

Attenuated

== Category`s purpose and scope == This is a philatelic sub-category intended to hold micro references of all known postage stamp issuers in terms of the issues they have implemented. Issuers can be central organisations, such as the Post Office in Great Britain, which are appointed and regulated by the national government. Issuers have also take....
Found on http://en.wikipedia.org/wiki/Attenuated

Attenuated

Reducing the virulence of an organism, usually a virus, whilst keeping it viable.
Found on http://www.encyclo.co.uk/local/22412