Home › Words › U › ultramicrobalanceultramicrobalanceultramicrobalance means A balance used to weigh very small amounts.Among words judged in Lexicurio's Arena, ultramicrobalance ranks #16,730 of 42,749 for Qualifying.EtymologyFrom ultra- + microbalance.nounA balance used to weigh very small amountsDefinitions & examples from Wiktionary (CC BY-SA 3.0).