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microinch

microinch

1 7.9
A very small unit of length equal to one millionth of an inch used in precise measurement
  • noun
  • /ˈmaɪkroʊˌɪnʧ/
  • Specialized
: micropulgada
  • This gauge can detect changes as small as a microinch, ensuring the highest quality in manufacturing.

Examples

  • Repeatability is ± 4.0 microinch.

    Academic text (1999)
  • The achieves 12-microinch surface finishes and an overall axis repeatability of 0.000050 in.

    Academic text (1996)
  • Comparative accuracy of both models is 7.0 microinch + L x 10^-6.

    Academic text (1999)
  • The engineer measured the part's thickness with precision down to a microinch.

  • A variation of less than one microinch can significantly affect the part's fit in engineering applications.

Surface Forms

microinch singular
microinches plural

Morphology

microinch = inch (transparent) = micro + inch

The word is a straightforward combination of the prefix 'micro-' and 'inch', meaning one millionth of an inch.

Etymology

Microinch starts with micro- which means 'small', as in microphone and microscope, and ends with inch, the familiar short unit of length. A microinch is literally 'one millionth of an inch', so the word is used when people talk about very small, very precise measurements.