noun
- plural of bouton; small knob-like swellings at the ends of nerve fibers
Usage: medical; anatomy
Examples
- The neuroscientist studied the boutons under a microscope.
- Damage to the boutons can affect nerve signal transmission.
- The axon terminals contain numerous boutons.
- Boutons release neurotransmitters at synapses.
- The researcher counted the boutons on each nerve fiber.