- a receiver (in various senses)
- Biochem. any of a group of substances, mainly proteins, found esp. on the surface of a cell, that combine with specific molecules, hormones, antibodies, drugs, viruses, etc.
- Physiol. a nerve ending or group of nerve endings specialized for the reception of stimuli; sense organ
Origin of receptorMiddle English receptour ; from Old French ; from Classical Latin receptor ; from receptus: see receipt
- Physiology A specialized cell or group of nerve endings that responds to sensory stimuli.
- Biochemistry A molecular structure or site on the surface or interior of a cell that binds with substances such as hormones, antigens, drugs, or neurotransmitters.
- (biochemistry, medicine) A protein on a cell wall that binds with specific molecules so that they can be absorbed into the cell in order to control certain functions.
- 2001: In the target organ, the drug is recognised by ‘receptors’. These are large molecules, usually proteins, to which the drug binds tightly and with a high degree of specificity. — Leslie Iversen, Drugs: A Very Short Introduction (Oxford 2001, p. 24)
- (biology) Any specialized cell or structure that responds to sensory stimuli.