Home › Words › R › rheoencephalogramrheoencephalogramrheoencephalogram means the diagnostic image produced by rheoencephalography.Among words judged in Lexicurio's Arena, rheoencephalogram ranks #15,678 of 42,749 for Qualifying.EtymologyFrom rheo- + encephalogram.nounThe diagnostic image produced by rheoencephalography.Definitions & examples from Wiktionary (CC BY-SA 3.0).