Skip to Content


Pronunciation: re-turn'


  1. Going or coming back; in cardiology, refers to blood flow.
  2. In phlebotomy, the appearance of blood in the hub of the venipuncture apparatus.

[M.E., fr. L.L. retorno, , to turn again]

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.