Dictionary
Thesaurus
Reference
Translate
Web
Related Searches
on Ask.com
Nearby Entries
x-ray - 8 dictionary results
MedInformatix
 A leading national provider of full EMR, PM, RIS Software
 www.medinformatix.com
Acquire Cell Data OnScene
 Automatic Phone & Cable Selection No Training Needed - Anyone Can Use
 logicubeforensics.com
Digital X-ray Systems
 Industrial X-ray Systems for Pipe Castings Electronics Welds and More
 www.4nsi.com

x-ray

  [eks-rey]
Use x-ray in a Sentence
–noun Also, x ray, X ray.
1. Physics.
a. Often, x-rays. a form of electromagnetic radiation, similar to light but of shorter wavelength and capable of penetrating solids and of ionizing gases.
b. such radiation having wavelengths in the range of approximately 0.1–10 nm.
2. a radiograph made by x-rays.
3. (initial capital letter) a word in communications to represent the letter X.
–verb (used with object)
4. to examine, photograph, or treat with x-rays.
–adjective
5. of or pertaining to x-rays.
Also, X-ray.

Origin:
1895–1900; trans. of G X-Strahl (1895), the name orig. given to the rays by Röntgen, their discoverer, x signifying their unknown nature
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
Cite This Source Link To x-ray
MedInformatix
 A leading national provider of full EMR, PM, RIS Software
 www.medinformatix.com
Acquire Cell Data OnScene
 Automatic Phone & Cable Selection No Training Needed - Anyone Can Use
 logicubeforensics.com
x-ray also X-ray   (ěks'rā')
n.   also x ray or X ray
    1. A relatively high-energy photon having a wavelength in the approximate range from 0.01 to 10 nanometers.
    2. A stream of such photons, used for their penetrating power in radiography, radiology, radiotherapy, and scientific research. Often used in the plural. Also called roentgen ray.
  2. A photograph taken with x-rays.
tr.v.   x-rayed also X-rayed, x-ray·ing also X-ray·ing, x-rays also X-rays
  1. To irradiate with x-rays.
  2. To photograph with x-rays.

[From the fact that it was a previously unknown form of radiation when first discovered.]
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
Cite This Source

x-ray

A form of electromagnetic radiation with very high frequency and energy. X-rays lie between ultraviolet radiation and gamma radiation on the electromagnetic spectrum.

Note: Because x-rays can travel through solid material and affect photographic plates, they are widely used in diagnosing medical problems.
Note: Objects in the sky also send out x-rays in processes that use very high energy.

x-ray

A photograph or image obtained through the use of x-rays. An x-ray is taken when an image of internal body structures (such as bones or organs) is needed to diagnose disease or determine the extent of injuries.

The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
Cite This Source
Language Translation for : x-ray
Spanish: radiografía,
German: die Röntgenaufnahme, Röntgen-…,
Japanese: レントゲン写真(の)
More Translations »

X-ray 
1896, translation of Ger. X-strahl, from X, algebraic symbol for an unknown quantity, + Strahl (pl. Strahlen) "beam, ray." Coined 1895 by Ger. scientist Wilhelm Conrad Röntgen (1845-1923), who discovered them.
Online Etymology Dictionary, © 2001 Douglas Harper
Cite This Source

Main Entry: x–ray
Pronunciation: 'eks-"rA
Function: transitive verb
often capitalized X : to examine, treat, or photograph with X rays
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
Cite This Source

x-ray or X-ray
n. or x ray or X ray

  1. A relatively high-energy photon with wavelength in the approximate range from 0.01 to 10 nanometers. Also called roentgen ray.
  2. A stream of such photons used for their penetrating power in radiography, radiology, radiotherapy, and scientific research. Often used in the plural. Also called roentgen ray.
  3. A photograph taken with x-rays.
v. x-rayed or X-rayed, x-ray·ing or X-ray·ing, x-rays or X-rays
  1. To irradiate with x-rays.
  2. To photograph with x-rays.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Cite This Source
x-ray also X-ray   (ěks'rā')  Pronunciation Key 
  1. 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.
  2. An image of an internal structure, such as a body part, taken with x-rays.

The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source
Search another word or see x-ray on Thesaurus | Reference
Digital X-ray Systems
 Industrial X-ray Systems for Pipe Castings Electronics Welds and More
 www.4nsi.com
X-ray Fluorescence Tools
 Plating Thickness Measurement Global XRF leader
 www.matrixmetrologies.com
Radiology Schools
 Directory of US Radiology Tech programs. Get admissions info.
 AllAlliedHealthSchools.com