hyperpolarize

/ˌhaɪpərˈpoʊləraɪz/
verb
  1. To cause a cell's membrane potential to become more negative than its resting potential, making it less likely to fire an electrical signal.
    • Certain neurons hyperpolarize when exposed to inhibitory neurotransmitters.
    • In the lab, scientists used electrodes to hyperpolarize the nerve cell and study its response.
    • The drug can hyperpolarize heart muscle cells, reducing abnormal electrical activity.
Antonyms