nonelectrolyte non·e·lec·tro·lyte (nŏn'ĭ-lěk'trə-līt')
A substance whose molecules in solution do not dissociate to ions and thus do not conduct an electric current.
electrolyte e·lec·tro·lyte (ĭ-lěk'trə-līt')
A chemical compound that ionizes when dissolved or molten to produce an electrically conductive medium.
Any of various ions, such as sodium or chloride, required by cells to regulate the electric charge and flow of water molecules across the cell membrane.