signs in

Science Dictionary
sign   (sīn)  Pronunciation Key 
  1. A body manifestation, usually detected on physical examination or through laboratory tests or xrays, that indicates the presence of abnormality or disease. Compare symptom.

  2. See symbol. See Table at symbol.


The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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