Home › Words › M › micromhomicromhomicromho means A former unit of electric conductance, one millionth of a mho.Among words judged in Lexicurio's Arena, micromho ranks #36,621 of 42,752 for Qualifying.EtymologyFrom micro- + mho.nounA former unit of electric conductance, one millionth of a mho.Definitions & examples from Wiktionary (CC BY-SA 3.0).