Kata bahasa Indonesia
English word
HYPHEN
WORDNET DICTIONARY
CIDE DICTIONARY
OXFORD DICTIONARY
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WORDNET DICTIONARY
Noun roentgen has 2 senses
- roentgen(n = noun.quantity) r - a unit of radiation exposure; the dose of ionizing radiation that will produce 1 electrostatic unit of electricity in 1 cc of dry air; is a kind of radioactivity unit
- roentgen(n = noun.person) rontgen, wilhelm konrad roentgen, wilhelm konrad rontgen - German physicist who discovered x-rays and developed roentgenography (1845-1923); is a kind of physicist
CIDE DICTIONARY
roentgen, a.
Of or pertaining to the German physicist Wilhelm Konrad Röntgen , or the rays discovered by him; as, Röntgen apparatus. [Webster 1913 Suppl.]
OXFORD DICTIONARY
roentgen, n. a unit of ionizing radiation, the amount producing one electrostatic unit of positive or negative ionic charge in one cubic centimetre of air under standard conditions.
Idiom
roentgen rays X-rays.
Etymology
W. C. R{ouml}ntgen, Ger. physicist d. 1923, discoverer of X-rays