Pronunciation: re-sep'tor, tor
- 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.
- Any one of the various sensory nerve endings in the skin, deep tissues, viscera, and special sense organs.
[L. receiver, fr. recipio, to receive]
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Examples: glitazone, GI cocktail, etc.