radiograph

noun

By · According to Wiktionary data (CC BY-SA) ·

"radiograph" is a 10-letter English headword indexed on PlainSpell.

The verdict

“radiograph” is uncommon English (frequency #97,474 among 21,470 “R” headwords), classed as a noun. The kind of spelling people second-guess.

#97,474
frequency rank, English
21,470
“R” headwords

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - An image, often a photographic negative, produced by radiation other than visible light; especially an X-ray photograph.

Key facts for radiograph
PropertyValue
Headwordradiograph
LanguageEnglish
Part of speechNoun
Letters10
Frequency rank#97,474
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “radiograph” sits in English frequency

Every-word frequency runs from the handful of words we use constantly (left) to the long tail used once in a blue moon (right). radiograph lands here:

#1#100#1K#10K#100K
← used constantlyrarely used →

Scale is logarithmic (each tick is 10× rarer). Source: FrequencyWords open word-frequency list.

Rare enough to double-check

radiograph is uncommon English at frequency #97,474 among 21,470 “R” headwords, classed as anoun. Rarity is why readers land here mid-draft. 2 senses are on record.

No generated misspelling entries exist for radiograph in our index, and the word's spelling is regular enough that our generator found nothing worth flagging. Our confusable-pair dataset has no match for it, since its spelling is unusual enough that it doesn't cluster with a lookalike.

Etymologically, the entry records: From radio- + -graph. The correct English form is radiograph, spelled R-A-D-I-O-G-R-A-P-H.

Definition

  1. 1
    An image, often a photographic negative, produced by radiation other than visible light; especially an X-ray photograph.
  2. 2
    An instrument for measuring and recording solar radiation.

Etymology

From radio- + -graph.

This word in other languages

radiografía(Español)radiographie(Français)Röntgenbild(Deutsch)

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA); frequency ordering uses the FrequencyWords open word-frequency list (2018 English corpus, MIT). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "radiograph"?
"radiograph" is spelled R-A-D-I-O-G-R-A-P-H.
What does "radiograph" mean?
As a noun, "radiograph" means: An image, often a photographic negative, produced by radiation other than visible light; especially an X-ray photograph.
What is the origin of the word "radiograph"?
From radio- + -graph. See the full etymology section above for more details.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Using “radiograph”

The practical upshot for anyone who landed here from a spell-check.

  • The one correct English spelling is R-A-D-I-O-G-R-A-P-H - every other letter order is a misspelling in standard orthography.
  • Browse more English words and confusable pairs in the same reference. English words

Other uncommon English words near this rank

Data Source

Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list