micrometer
noun- (US English) (British English micrometre)(symbol μm)a unit for measuring length, equal to one millionth of a metre
Definitions on the go
Look up any word in the dictionary offline, anytime, anywhere with the Oxford Advanced Learner’s Dictionary app.
- /maɪˈkrɒmɪtə(r)//maɪˈkrɑːmɪtər/a device used for measuring very small distances or spaces
Check pronunciation:
micrometer