Wiktionary
acetylcholine receptor
n. (context neuroscience English) A feature of neurons that detects the presence of the neurotransmitter acetylcholine as part of neural activity.
Wikipedia
Acetylcholine receptor
An acetylcholine receptor (abbreviated AChR) is an integral membrane protein that responds to the binding of acetylcholine, a neurotransmitter.
Usage examples of "acetylcholine receptor".
There was no indication from inside the ship that anything about it had changed, but somewhere up ahead was an acetylcholine receptor -- or, more likely, hundreds of them -- and the patterns meshed, positive to negative and negative to positive, so that the attraction between ship and receptor was sharp and great.