X-ray

X-ray

1. Also x ray or X ray A relatively high-energy photon with wavelength in the approximate range from 0.01 to 10 nanometers. I get an x-ray of my teeth each year.
2. A stream of such photons, used for their penetrating power in radiography, radiology, radiotherapy, and scientific research. X-rays can cause problems to humans with extensive exposure.

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Shown is an x-ray of the hands