Home › Words › M › microvoidmicrovoidmicrovoid · noun — A microscopic void in the crystal structure of a metal.Definition from Wiktionary (CC BY-SA 3.0).Among words judged in Lexicurio's Arena, microvoid ranks #14,993 of 42,820 for Qualifying.EtymologyFrom micro- + void.nounA microscopic void in the crystal structure of a metalDefinitions & examples from Wiktionary (CC BY-SA 3.0).