Skip to Content


Pronunciation: re-sep'tor, tor


  1. A structural protein molecule on the cell surface or within the cytoplasm that binds to a specific factor, such as a drug, hormone, antigen, or neurotransmitter.
  2. Any one of the various sensory nerve endings in the skin, deep tissues, viscera, and special sense organs.

[L. receiver, fr. recipio, to receive]

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.