manto
n.— «Deposits of copper-cobalt-manganese-zinc mineralization at Boleo occur within widespread, stratiform clay-rich horizons or beds known as “mantos” (manto is a Spanish term used in mining parlance for a general mineralized layer or stratum).» —“Baja Mining Reports on Initial In-Fill Drilling Results of the Definitive Feasibility Study” in Vancouver, British Columbia Baja Mining Corp. July 24, 2006. (source: Double-Tongued Dictionary)
Further reading
An anadrome is a word that forms a whole new word when you spell it backwards. For example, the word “stressed” spelled backwards is “desserts.” Some people’s first names are anadromes. There’s the girl named Noel...