X x


    • US Pronunciation
    • US IPA
    • UK Pronunciation
    • UK IPA
    • [eks rey]
    • /ɛks reɪ/
    • /eks reɪ/
    • US Pronunciation
    • US IPA
    • [eks rey]
    • /ɛks reɪ/

Definitions of x-ray word

  • noun 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 nm. 1
  • noun x-ray a radiograph made by x-rays. 1
  • noun x-ray (initial capital letter) a word in communications to represent the letter X. 1
  • verb with object x-ray to examine, photograph, or treat with x-rays. 1
  • adjective x-ray of or relating to x-rays. 1
  • noun x-ray radiograph 1

Information block about the term

Origin of x-ray

First appearance:

before 1895
One of the 18% newest English words
1895-1900; translation of German X-Strahl (1895), the name orig. given to the rays by Röntgen, their discoverer, x signifying their unknown nature

Historical Comparancy

Parts of speech for X-ray


x-ray popularity

A common word. It’s meaning is known to most children of preschool age. About 77% of English native speakers know the meaning and use the word.
Most Europeans know this English word. The frequency of it’s usage is somewhere between "mom" and "screwdriver".

Synonyms for x-ray

verb x-ray

  • analyze — to separate (a thing, idea, etc.) into its parts so as to find out their nature, proportion, function, interrelationship, etc.
  • cinematize — to adapt (a novel or play) for cinema
  • close up — If someone closes up a building, they shut it completely and securely, often because they are going away.
  • close-up — the end or conclusion: at the close of day; the close of the speech.
  • closeup — a photograph taken at close range or with a long focal-length lens, on a relatively large scale.

noun x-ray

  • brain scan — an examination of the brain, using radiological scanning techniques, used in medical diagnosis and scientific research
  • cat scan — CT scan
  • ct scan — a scan done by a computerized tomography scanner
  • lookalike — a person or thing that looks like or closely resembles another; double.
  • mimeo — A mimeograph.

adjective x-ray

  • infrared — the part of the invisible spectrum that is contiguous to the red end of the visible spectrum and that comprises electromagnetic radiation of wavelengths from 800 nm to 1 mm.

Top questions with x-ray

  • who discovered x-ray?
  • what is an x-ray?
  • who invented the x-ray?
  • what does x-ray stand for?
  • what is x-ray?

See also

Matching words

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