Weak electrolyte.
a weak electrolyte is an electrolyte that partially dissociates in solution. the solution will have both ions and molecules of the electrolyte.
electrolytes are substances which, when dissolved in water, break up into cations (plus-charged ions) and anions (minus-charged ions). we say they ionize. strong electrolytes ionize completely (100%), while weak electrolytes ionize only partially (usually on the order of 1β10%