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Macrometer vs Micrometer - What's the difference?

macrometer | micrometer |

As nouns the difference between macrometer and micrometer

is that macrometer is an instrument for determining the size or distance of inaccessible objects by means of two reflectors on a common sextant while micrometer is an SI/MKS unit of measure, the length of one one-millionth of a meter. Symbols: µm, um, rm.

macrometer

English

Noun

(en noun)
  • An instrument for determining the size or distance of inaccessible objects by means of two reflectors on a common sextant.
    • (Webster 1913)

    micrometer

    English

    Etymology 1

    Alternative forms

    * micrometre (UK)

    Noun

    (en noun)
  • An , um, rm
    • Synonyms
    * micron (obsolete)
    See also
    *

    Etymology 2

    From (etyl)

    Noun

    (en noun)
  • A device used to measure distance very precisely but within a limited range, especially depth, thickness, and diameter.
    • See also
    * * (commonslite)

    Anagrams

    * ----