Home › Words › O › oilometeroilometeroilometer means synonym of oleometer (“instrument for determining the weight and purity of oil”).Among words judged in Lexicurio's Arena, oilometer ranks #13,965 of 42,749 for Qualifying.EtymologyFrom oil + -o- + -meter.nounSynonym of oleometer (“instrument for determining the weight and purity of oil”).An indicator of the oil level in a vehicle.Definitions & examples from Wiktionary (CC BY-SA 3.0).