1. a specialized cell or group of cells that receives and responds to stimuli
Usage: biology
2. a protein molecule that binds with specific substances to produce a biological response
Usage: biochemistry
3. a device that receives signals or stimuli
Usage: technology

Examples

• Pain receptors in the skin alert us to potential injury.
• The eye contains light receptors called rods and cones.
• Insulin binds to specific receptors on cell surfaces.
• Drug researchers study how medications interact with brain receptors.
• The radio receptor picked up signals from distant stations.
• Taste receptors on the tongue detect different flavors.
• Scientists discovered new receptors involved in smell perception.