Home › Words › R › rockmassrockmassrockmass · noun — A mass of rock.Definition from Wiktionary (CC BY-SA 3.0).Among words judged in Lexicurio's Arena, rockmass ranks #16,849 of 42,862 for Qualifying.EtymologyFrom rock + mass.nounA mass of rock.e.g.“The mechanical characteristics of the host rockmass above and below the mine workings are highly anisotropic and complex […]” — 1995, F. B. J. Barends, Frits J. J. Brouwer, Frans H. Schröder, Land Subsidence: By Fluid Withdrawal, by Solid Extraction: Theory and Modelling, Environmental Effects and Remedial Measures: ProceedingDefinitions & examples from Wiktionary (CC BY-SA 3.0).