microelectrodes

/ˌmaɪkroʊɪˈlɛktroʊdz/
noun
  1. Very small electrodes used to measure electrical activity in tiny areas, such as in cells or small electronic devices.
    • Microelectrodes are essential tools in modern neuroscience research.
    • Scientists use microelectrodes to record signals from a single brain cell.
    • The lab developed new microelectrodes for studying how nerves communicate.