e‧lec‧trode /ɪˈlektrəʊd $ -troʊd/
noun [countable][
Date: 1800-1900;
Origin: electro- + Greek hodos 'way, path']
a small piece of metal or a wire that is used to send electricity through a system or through a person’s body:
The monkeys have electrodes implanted into the brain to measure their brain activity. [TahlilGaran] Dictionary of Contemporary English ▲