Skip to Content


Pronunciation: sig'nal


  1. Something that causes an action or conveys information.
  2. A DNA template sequence that alters RNA polymerase transcription.
  3. The end product observed when a specific sequence of DNA or RNA is deleted by some method.
  4. The message transmitted on binding of an agonist to a receptor.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.