The crossword solution for the term 'make more concentrated than normal' is 'supersaturate' (13 letters). Supersaturation is a state in which a solution contains more of a dissolved material than could be dissolved by the solvent under normal circumstances. This can occur when a solute is added to a solution, or when the temperature of the solution is lowered. In either case, the solute will precipitate out of the solution, forming a solid.