Skip to Content


Pronunciation: ă-ten′yū-ā-tŏr, -tōr


  1. An electrical system of resistors and capacitors used to reduce the strength of electrical signals, as in ultrasonography.
  2. The terminator sequence in DNA at which attenuation occurs; located between the operator and the gene for the first protein in an operon.

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.