| X amplifier | Horizontalverstärker |
| X and Y bosons | X-Boson |
| X and Y respectively | X bzw. Y |
| X Article | X-Artikel |
| X as in X-ray | X wie Xanthippe |
| X chromosome | X-Chromosom |
| X class submarine | X-Klasse |
| X display manager | X Display Manager |
| X for X-ray | X wie Xanthippe |
| X for Xmas | X wie Xanthippe |
| X gain | Horizontalverstärkung |
| X Games | X Games |
| x height | Mittellänge |
| X III: The Last Stand | X-Men - Der letzte Widerstand |
| X Japan | X Japan |
| x mark | Kreuzchen |
| x modulation | Kreuzmodulation |
| x out | ausixen |
| x out a passage from a text | eine Texpassage ausixen |
| X PixMap | X PixMap |
| X radiation | Röntgenbremsstrahlung |
| X ray | Röntgenaufnahme |
| X ray specxtrometer | Röntgen-Spektrometer |
| X ray tube | Röntgenröhre |
| X rays | Röntgenstrahlung |
| X read-write wire | Zeilendraht |
| X the Experiment | Schock |
| X times | X-fache |
| x to the power of n | x hoch n |
| X unit | X-Einheit |
| X window manager | Fenstermanager |
| X Window System core protocol | Keycode |
| X, Y and Zee | X, Y und Zee |
| X-15 | Die X-15 startklar |
| x-acto knife | Schablonenmesser |
| X-amplifier | X-Verstärker |
| X-axis | Abszisse |
| X-bar theory | X-Bar-Theorie |
| X-cell | X-Zelle |
| X-cells | X-Zellen |
| X-chromosome | X-Chromosom |
| X-COM series | X-COM |
| X-convention | Esperanto-Rechtschreibung |
| X-coordinate | Abszisse |
| x-coordinates | Abszissenwerte |
| X-crossing | X-Kreuzung |
| X-efficiency | X-Effizienz |
| x-factor | unbekannte Größe |
| X-inactivation | X-Inaktivierung |
| X-irradiation | Röntgenbestrahlung |
| X-knife radiosurgery | X-Knife-Radiochirurgie |
| X-linked agammaglobulinemia | Agammaglobulinämie |
| X-linked bulbo-spinal atrophy | spinobulbäre Muskelatrophie , SBMA |
| X-linked dominant | X-chromosomal-dominant |
| X-linked spinal muscular atrophy type 1 , SMAX1 | spinobulbäre Muskelatrophie , SBMA |
| X-mas | Weihnachten |
| X-mas parties | Weihnachtsfeiern |
| X-mas party | Weihnachtsfeier |
| X-mas star | Weihnachtsstern |
| X-Men | X-Men |
| X-Men: Days of Future Past | X-Men: Zukunft ist Vergangenheit |
| X-Men: First Class 2 | X-Men: Zukunft ist Vergangenheit |
| X-Men: The Last Stand | X-Men - Der letzte Widerstand |
| X-plane | X-Flugzeuge der USA |
| x-plate | Horizontalablenkplatte |
| X-radiation | Röntgenstrahlung |
| X-rated | X-Rating |
| X-ray | durchleuchten |
| X-ray ... | Röntgen... |
| X-ray absorption | Röntgenabsorption |
| X-ray absorption edge | Röntgenabsorptionskante |
| X-ray absorption spectroscopy | Röntgenabsorptionsspektroskopie |
| X-ray absorption spectrum | Röntgenabsorptionsspektrum |
| X-ray accessories | Röntgenzubehör |
| X-ray analyses | Röntgenanalysen |
| X-ray analysis | Röntgenanalytik |
| X-ray angiography | Röntgenangiografie |
| X-ray apparatus | Röntgengerät |
| X-ray apparatuses | Röntgenapparate |
| X-ray assistant | Röntgenassistent |
| X-ray astronomer | Röntgenastronom |
| X-ray astronomy | Röntgenastronomie |
| X-ray astronomy satellite | Röntgenastronomie-Satellit |
| X-ray attack | Röntgenangriff |
| X-ray beam | Röntgenstrahl |
| X-ray binaries | Röntgen-Doppelsterne |
| X-ray binary | Röntgendoppelstern |
| X-ray binary star | Röntgendoppelstern |
| X-ray bremsstrahlung | Röntgenbremsstrahlung |
| X-ray burn | Röntgenverbrennung |
| X-ray burster | Röntgenburster |
| X-ray bus | Röntgenbus |
| X-ray camera | Röntgenkamera |
| X-ray cassette | Röntgenkassette |
| X-ray castration | Röntgenkastration |
| X-ray cathode | Röntgenröhrenkathode |
| X-ray check | Röntgenkontrolle |
| X-ray cine camera | Röntgen-Kinokamera |
| X-ray computed tomography | Röntgencomputertomographie |
| X-ray computer tomography | Röntgencomputertomographie |
| X-ray cone | Röntgentubus |
| X-ray contrast medium | Röntgenkontrastmittel |
| X-ray control room | Röntgen-Schaltraum |
| X-ray couch | Röntgenliege |
| X-ray crystal structure analysis | Röntgenkristallstrukturanalyse |
| X-ray crystallography | Kristallstrukturanalyse |
| X-ray department | Röntgenabteilung |
| X-ray departments | Röntgen-Abteilungen |
| X-ray dermatitis | Röntgen-Dermatitis |
| X-ray detector | Röntgendetektor |
| X-ray detectors | Röntgendetektoren |
| X-ray diagnosis | Röntgendiagnose |
| X-ray diagnostic device | Röntgendiagnostikeinrichtung |
| X-ray diagnostics | Röntgendiagnostik |
| X-ray diffraction | Kristallstrukturanalyse |
| X-ray diffraction camera | Röntgenbeugungskamera |
| X-ray diffraction diagram | Röntgenbeugungsdiagramm |
| X-ray diffraction pattern | Röntgenbeugungsbild |
| X-ray diffraction powder pattern | Röntgenpulverdiagramm |
| X-ray diffraction spectroscopy | Röntgen-Beugungsspektroskopie |
| X-ray diffractometer | Röntgendiffraktometer |
| X-ray diffractometry | Röntgendiffraktometrie |
| X-ray dosage | Röntgendosis |
| X-ray dose | Röntgendosis |
| X-ray dosemeter | Röntgendosimeter |
| X-ray dosimeter | Röntgen-Dosimeter |
| X-ray drawing | Phantombild |
| X-ray emission | Röntgenemission |
| X-ray emitter | Röntgenstrahler |
| X-ray emitters | Röntgenstrahlenquellen |
| X-ray equipment | Röntgenausrüstung |
| X-ray erythema | Röntgenerythem |
| X-ray examination | Röntgenuntersuchung |
| X-ray examination form | Röntgenschein |
| X-ray examination of material | Röntgen-Materialprüfung |
| X-ray examination of materials | Röntgen-Materialprüfung |
| X-ray examinations | Röntgenuntersuchungen |
| X-ray exposed | röntgenbelichtet |
| X-ray exposure | Röntgenaufnahme |
| X-ray eyes | Röntgenaugen |
| X-ray film cassette | Röntgenfilmkassette |
| X-ray film disposal | Röntgenfilmentsorgung |
| X-ray film envelope | Röntgenfilmtasche |
| X-ray film holder | Röntgenfilmhalter |
| X-ray film holding device | Röntgenfilmhalter |
| X-ray film processing | Röntgenfilmentwicklung |
| X-ray film processor | Röntgenfilmentwicklungsgerät |
| X-ray film scanner | Röntgenfilmscanner |
| X-ray film viewer | Röntgenfilmbetrachter |
| X-ray film viewing box | Röntgenfilm-Betrachtungskasten |
