Dictionary
1micrometer
noun mi·crom·e·ter \mī-ˈkrä-mə-tər\
Definition of MICROMETER
1
: an instrument used with a telescope or microscope for measuring minute distances
2
: a caliper for making precise measurements that has a spindle moved by a finely threaded screw
ADVERTISEMENT
Origin of MICROMETER
French micromètre, from micr- + -mètre -meter
First Known Use: 1670
Rhymes with MICROMETER
2micrometer
noun mi·cro·me·ter \ˈmī-krō-ˌmē-tər\
Definition of MICROMETER
: a unit of length equal to one millionth of a meter —called also micron — see metric system table
Origin of MICROMETER
International Scientific Vocabulary micr- + 3meter
First Known Use: 1880
MICROMETER Defined for Kids
micrometer
noun mi·crom·e·ter \mī-ˈkrä-mə-tər\
Definition of MICROMETER for Kids
1
: an instrument used with a telescope or microscope for measuring very small distances
2
: an instrument having a rod moved by fine screw threads and used for making exact measurements
Learn More About MICROMETER
Browse
Next Word in the Dictionary: micromethodPrevious Word in the Dictionary: micrometeorologyAll Words Near: micrometer
ADVERTISEMENT
Seen & Heard
What made you want to look up micrometer? Please tell us where you read or heard it (including the quote, if possible).