micrometer

From French micromètre, equivalent to micro- +‎ -meter.

• (Received Pronunciation) IPA^(key): /maɪˈkɹɒmɪtə/

  • Audio (Southern England):

    (file)

• (General American) IPA^(key): /maɪˈkɹɑmɪtəɹ/, [maɪˈkɹɑmɪɾɚ]

micrometer (plural micrometers)

2. A device used to measure distance very precisely but within a limited range, especially depth, thickness, and diameter.

• Micrometer (measuring device) on Wikipedia.Wikipedia
• Category:micrometers on Wikimedia Commons.Wikimedia Commons

From micro- (“one millionth”) + meter.

• (UK) IPA^(key): /ˈmaɪkɹəˌmiːtə/

  • Audio (Southern England):

    (file)

• (US) IPA^(key): /ˈmaɪkɹoʊˌmiːtəɹ/, [ˈmaɪkɹoʊˌmiːɾɚ]

micrometer (plural micrometers)

2. US spelling of micrometre (“one-millionth of a metre”).
   • 2025 September 26, Grant Maloy Smith, “What Is a Strain Gauge Sensor and How Does It Work?”, in DEWESoft‎^[1], archived from the original on 14 November 2025:

     A strain is usually expressed in μm/m (micrometer per meter), also known as microstrain, which has the symbol µε. You may also see “mV/V,” which refers to the output in millivolts per volt of excitation.

• Micrometer (unit of measure) on Wikipedia.Wikipedia

• micrometre

From micro- +‎ meter.

• Audio:

  (file)

• Hyphenation: mi‧cro‧me‧ter

micrometer m (plural micrometers, diminutive micrometertje n)

1. micrometer (unit of measure)
2. micrometer (measuring device)