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| X-ray or X ray or x-ray or x ray |
noun (plural X-rays) |
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| Definition: |
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1. electromagnetic radiation: a high-energy electromagnetic radiation that can penetrate solids and ionize gas. It has a wavelength between 0.01 and 10 nanometers, which is between gamma rays and ultraviolet light.
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2. photographic image using X-rays: an image produced on photographic film by X-rays passing through objects or parts of the body, often used in medicine and science as a diagnostic tool
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3. communication code word for letter "X": a code word for the letter "X," used in international radio communications
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transitive verb (past and past participle X-rayed, present participle X-ray·ing, 3rd person present singular X-rays) |
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| Definition: |
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1. photograph something using X-rays: to expose something such as a part of the body to X-rays in order to obtain a photographic image of it
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2. examine something with X-rays: to examine something, e.g. baggage or freight, using X-rays
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| [Late 19th century. Translation of German X-Strahl, X signifying "unknown"] |
