The Meltionary is a growing experimental directory that investigates different materials, metaphors and modes of melting. The term Meltionary is a linguistic play on the English word dictionary; based on dictionary entries, it consists of Meltries, each beginning with a letter. The Meltries are playful instructions to unnerve definitions, videos of melting processes, photo series of how materials witness change, reports on failure, experimental instructions for generating chemical reactions, circuits for DIY measuring devices, and theoretical-poetic texts.