receptor
word
Definition
A receptor is a part of a cell or system that receives and responds to signals, such as chemicals, light, or sound. In science, it usually refers to proteins in the body that detect signals or stimuli.
Usage & Nuances
Common in scientific, biological, and medical contexts. In everyday English, rarely used outside of science. Don't confuse with 'reception' (the act of receiving) or 'receptor' meaning a device (which is rare in everyday use). In physiology, often collocates with 'hormone', 'neurotransmitter', or 'cell'.
Example Sentences
Some medicines block pain receptors in the brain.
basic
A hormone binds to its receptor in the cell membrane.
basic
Light detected by an eye's receptors helps us see.
basic
Your nose has different smell receptors for every type of scent.
natural
Many viruses enter the body by attaching to cell receptors.
natural
Caffeine keeps you awake by blocking certain receptors in your brain.
natural