x-ray
or X-ray
Physics.
Often x-rays. a form of electromagnetic radiation, similar to light but of shorter wavelength and capable of penetrating solids and of ionizing gases.
such radiation having wavelengths in the range of approximately 0.1–10 nanometers.
a radiograph made by x-rays.
(initial capital letter) a word in communications to represent the letter X.
to examine, photograph, or treat with x-rays.
of or relating to x-rays: x-ray examination of the digestive tract.
able to see through objects that are opaque:the x-ray vision of Superman and other superheroes.
able to clearly and keenly perceive or recognize something that is not outwardly visible: a teacher with x-ray intuition about her students.
Origin of x-ray
1Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024
How to use x-ray in a sentence
An x-ray two hours later confirms my hunch: my tibia (the big bone behind the shin) is snapped clean in two.
(It has subsequently become standard procedure to x-ray a body as part of an autopsy).
Warfighter Media Group worked closely with Stewart, training the actress for her role as Pfc. Cole in Camp x-ray.
The Right-Wing Crusade Against KStew: How Fear Factories Like Breitbart and Fox Distort News | Marlow Stern | October 16, 2014 | THE DAILY BEASTOver the weekend, The Daily Beast ran an interview with Camp x-ray star Kristen Stewart.
The Right-Wing Crusade Against KStew: How Fear Factories Like Breitbart and Fox Distort News | Marlow Stern | October 16, 2014 | THE DAILY BEASTWith Camp x-ray, this is pretty heavy subject matter here in Gitmo.
The school's x-ray, an excellent one, had given him a complete picture of the molecular structure of the syrup.
Hunter Patrol | Henry Beam Piper and John J. McGuireHe submits himself to what one, to-day, might call the x-ray of criticism.
The Complete Bachelor | Walter GermainAn X ray laboratory should always be sought, where convenient, to ascertain if the ends of the bones are in good position.
The Mother and Her Child | William S. SadlerIn all instances it is well to locate its exact position by the X ray—that there may be assurance that it will do no harm.
The Mother and Her Child | William S. SadlerHe gropes in his own body silently, harmlessly with the x-ray, and watches with awe the beating 56of his heart.
The Voice of the Machines | Gerald Stanley Lee
British Dictionary definitions for X-ray
electromagnetic radiation emitted when matter is bombarded with fast electrons. X-rays have wavelengths shorter than that of ultraviolet radiation, that is less than about 1 × 10 –8 metres. They extend to indefinitely short wavelengths, but below about 1 × 10 –11 metres they are often called gamma radiation
(as modifier): X-ray astronomy
a picture produced by exposing photographic film to X-rays: used in medicine as a diagnostic aid as parts of the body, such as bones, absorb X-rays and so appear as opaque areas on the picture
(usually capital) communications a code word for the letter x
to photograph (part of the body, etc) using X-rays
to treat or examine by means of X-rays
Origin of X-ray
1Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Scientific definitions for x-ray
A high-energy stream of electromagnetic radiation having a frequency higher than that of ultraviolet light but less than that of a gamma ray (in the range of approximately 1016 to 1019 hertz). X-rays are absorbed by many forms of matter, including body tissues, and are used in medicine and industry to produce images of internal structures. See more at electromagnetic spectrum.
An image of an internal structure, such as a body part, taken with x-rays.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Cultural definitions for x-ray (1 of 2)
A form of electromagnetic radiation with very high frequency and energy. X-rays lie between ultraviolet radiation and gamma radiation on the electromagnetic spectrum.
Notes for x-ray
Notes for x-ray
The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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