Oxford Dictionary English melt down phrasal verbphrasal verb Add to my wordlistjump to other resultsPhrasal Verbsmelt somethingdown Add to my wordlistjump to other resultsto heat a metal or wax object until it is liquid, especially so that the metal or wax can be used to make something else Many of the bronze statues were melted down and used to make weapons. related noun meltdown oxfordlearnersdictionaries.com