Definition of metrology in English:

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Pronunciation: /məˈträləjē/


The scientific study of measurement.
Example sentences
  • The Swedish physicist prized Michelson's use of his interferometer in metrology and, in particular, for determining experimentally the length of the international metre.
  • As a result of the extremely small line width of less than 5 MHz, possible applications are also in spectroscopy, metrology, sensor technology, and atomic physics.
  • The company designs, sells and manufactures fibre-optic and laser products for a number of markets, including biotechnology, semi-conductor and scientific metrology.



Pronunciation: /ˌmetrəˈläjək(ə)l/
Example sentences
  • The 1907 Nobel Prize for Physics therefore went to Michelson for his ‘optical precision instruments and the spectroscopic and metrological investigations carried out with their aid’.
  • A new metrological device promises to speed the development of micromachines.
  • In Kendal, Dalton started to keep a metrological journal, he made his own thermometers, barometers and other instruments.


Pronunciation: /-jist/
Example sentences
  • Today, two centuries later, the struggle for precision continues as metrologists devise ever more exacting techniques to measure quantities either so teeny or so gigantic that they had once been judged unmeasurable.
  • Cosmologist and metrologist Dr. John Hartnett points out that Ross is even wrong about the secular astronomy (personal communication).
  • Since the metrologists know the structure of the crystal, the volume occupied by an atom can be known.


Early 19th century: from Greek metron 'measure' + -logy.

For editors and proofreaders

Syllabification: me·trol·o·gy

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