MICROMETER /ˈmaɪkɹəʊmiːtə/ ► audio Scrabble 16 Words With Friends 19 Definition noun a metric unit of length equal to one millionth of a meter. — synonyms: micron noun caliper for measuring small distances. — synonyms: micrometer_gauge, micrometer_caliper See all 183 words you can make from MICROMETER → 10-letter words Words starting with M Words ending with R ← Unscramble different letters