Home › Words › R › rhusmarhusmarhusma · noun — A mixture of caustic lime and orpiment, or tersulphide of arsenic, used in the depilation of hides.Definition from Wiktionary (CC BY-SA 3.0).Among words judged in Lexicurio's Arena, rhusma ranks #16,998 of 43,042 for Qualifying.EtymologySee rusma.nounA mixture of caustic lime and orpiment, or tersulphide of arsenic, used in the depilation of hides.Definitions & examples from Wiktionary (CC BY-SA 3.0).