microiontophoresis

noun

mi·​cro·​ion·​to·​pho·​re·​sis -(ˌ)ī-ˌänt-ə-fə-ˈrē-səs 

plural microiontophoreses -ˌsēz 

: a process for observing or recording the effect of an ionized substance on nerve cells that involves inserting a double micropipette into the brain close to a nerve cell, injecting an ionized fluid through one barrel of the pipette, and using a concentrated saline solution in the other tube as an electrical conductor to pick up and transmit back to an oscilloscope any change in neural activity

microiontophoretic

-ˈret-ik 

adjective

microiontophoretically

-i-k(ə-)lē 

adverb