What does roentgen mean?

Definitions for roentgen
ˈrɛnt gən, -dʒən, ˈrʌnt-roent·gen

This dictionary definitions page includes all the possible meanings, example usage and translations of the word roentgen.

Princeton's WordNet

  1. roentgen, Rnoun

    a unit of radiation exposure; the dose of ionizing radiation that will produce 1 electrostatic unit of electricity in 1 cc of dry air

  2. Roentgen, Wilhelm Konrad Roentgen, Rontgen, Wilhelm Konrad Rontgennoun

    German physicist who discovered x-rays and developed roentgenography (1845-1923)


  1. roentgen

    Roentgen is a unit of measurement for exposure to ionizing radiation, named after German physicist Wilhelm Conrad Roentgen who discovered X-rays. It measures the amount of ionization the X-ray photon could produce in dry air and is used to evaluate the dosage of radiation a person is exposed to.


  1. Roentgen

    The roentgen is a legacy unit of measurement for the kerma of X-rays and gamma rays up to 3 MeV. The unit is still used in the United States Navy nuclear propulsion program. It is named after the German physicist Wilhelm Röntgen, the man who discovered X-rays. Originating in 1908, this unit has been redefined and renamed over the years. It was last defined by the US National Institute of Standards and Technology in 1998 as 2.58×10^−4 C/kg, with a recommendation that the definition be given in every document where the roentgen is used. One roentgen of air kerma deposits 0.00877 gray of absorbed dose in dry air, or 0.0096 gray in soft tissue. One roentgen of X-rays may deposit anywhere from 0.01 to more than 0.04 gray in bone depending on the beam energy. This tissue-dependent conversion from kerma to absorbed dose is called the F-factor in radiotherapy contexts. The conversion depends on the ionizing energy of a reference medium, which is ambiguous in the latest NIST definition. Even where the reference medium is fully defined, the ionizing energy of the calibration and target mediums are often not precisely known.

Dictionary of Military and Associated Terms

  1. roentgen

    A unit of exposure dose of gamma (or X-) radiation. In field dosimetry, one roentgen is essentially equal to one rad.

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How to say roentgen in sign language?


  1. Chaldean Numerology

    The numerical value of roentgen in Chaldean Numerology is: 9

  2. Pythagorean Numerology

    The numerical value of roentgen in Pythagorean Numerology is: 8

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Translations for roentgen

From our Multilingual Translation Dictionary

  • الرونتجن الوحدة الدولية لأشعة اكسArabic
  • レントゲンJapanese

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"roentgen." Definitions.net. STANDS4 LLC, 2024. Web. 29 May 2024. <https://www.definitions.net/definition/roentgen>.

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    transmit (a signal) for setting off an appropriate response, as in telecommunication
    A interrogate
    B signify
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