The term ICE MELTER can be broken down into two crossword solutions: SUN and SALT. SUN is a 3 letter word that refers to the star at the center of our solar system, which is composed mainly of hydrogen and helium and emits light and other forms of electromagnetic radiation. SALT is a 4 letter word that refers to a mineral composed primarily of sodium chloride, which is used in many different ways, including as a seasoning, preservative, and ice melter.