micrometer micrometeoroid • micrometer caliper · · · Info · Definitions · Synonyms · Characters · · micrometer · · Text Latin · · Script 10 · · Length 4 · · Syllables Definitions · · · (noun) a metric unit of length equal to one millionth of a meter. Synonyms: micron. · · Noun Definition 1 (noun) caliper for measuring small distances. Synonyms: micrometer gauge, micrometer caliper. · · Noun Definition 2 Synonyms · · · micron · · Synonym 1 micrometer gauge · · Synonym 2 micrometer caliper · · Synonym 3 Characters · · c latin small letter c U+0063 e latin small letter e U+0065 i latin small letter i U+0069 m latin small letter m U+006D o latin small letter o U+006F r latin small letter r U+0072 t latin small letter t U+0074