microiontophoresis

mi·cro·ion·to·pho·re·sis -(.)ī-.änt-ə-fə-'rē-səs n, pl -re·ses -.sēz 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

mi·cro·ion·to·pho·ret·ic -'ret-ik adj

mi·cro·ion·to·pho·ret·i·cal·ly -i-k(ə-)lē adv