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ultramicrometer
[uhl-truh-mahy-krom-i-ter]
noun
a micrometer calibrated to a very fine scale and capable of measuring extremely small magnitudes.
ultramicrometer
/ ˌʌٰəɪˈɒɪə /
noun
a micrometer for measuring extremely small distances
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Word History and Origins
Origin of ultramicrometer1
First recorded in 1925–30; ultra- + micrometer 1
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