Also found in: Dictionary, Thesaurus, Encyclopedia.
Related to rontgen: Marie Curie, Henri Becquerel


Wilhelm Conrad (1845–1923). German physicist, born at Lennep (Rheinland). For his discovery of x-rays while experimenting with a cathode-ray tube in 1895, he received the first Nobel prize for physics in 1901.


Wilhelm K., German physicist and Nobel laureate, 1845-1923. Discovered x-rays in November, 1895; awarded Nobel Prize in Physics in 1901 for his discovery. See: roentgen, roentgen ray.

roent·gen (R, r),

(rĕnt'gĕn, rent'chen),
The international unit of exposure dose for x-rays or gamma rays; that quantity of radiation that will produce, in 1 cc or 0.001293 g of air at STP, 2.08 × 109 ions of both signs, each totaling 1 electrostatic unit (esu) of charge; in the MKS system this is 2.58 × 10-4 coulombs per kg of air.
[Wilhelm K. Roentgen]


(rĕnt′gən, -jən, rŭnt′-)
Variant of roentgen.


References in periodicals archive ?
Total quantity or scope: An X-ray device and purpose Rontgen script completely digital
Beyin ve omuriligi goruntuleme tekniklerinin gelisimi rontgen isinin kesfini izleyerek kranyografi ile 1900' lerin baslarinda baslamistir.
If you look at current imaging technology, technically very little has changed since Wilhelm Rontgen discovered X-rays more than 100 years ago," said Otto Zhou, a materials scientist at the University of North Carolina (UNC) in Chapel Hill.
Yuksek dozda IVIG verilen hastalarda subjektif duzelmenin daha iyi oldugu, hastane yatislarinin azaldigi, rontgen ve akciger fonksiyon testlerinde duzelmenin, major ve minor enfeksiyonlarda azalmanin daha anlamli oldugu belirtilmektedir (1-6).
Rontgen went on to pioneer the medical applications of X-rays for which they were still best known today.
Olgularin demografik ozellikleri, klinik tani ve solunumsal bulgulari, arteriyel kan gaz analizleri, gogus fizyoterapi programina baslanmadan onceki ve fizyoterapi programi sonlandirildiktan sonraki klinik ve rontgen bulgulan degerlendirildi.
2) In 1895 alone, Wilhelm Conrad Rontgen discovered the X-ray, Guglielmo Marconi invented the wireless telegraph, and the Lumiere brothers, Auguste and Luis, showed moving images on a big screen for the first time.
Gaudeamus: het leven van Julius Rontgen (1855-1932), componist en musicus.
Of what part of his wife's anatomy did Wilhelm Rontgen make the first ever X-ray in 1895?