induration

/ɪndjʊˈɹeɪʃən/

//ɪndjʊˈɹeɪʃən// noun

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

The verdict

“induration” is outside the top-ranked English vocabulary, used as a noun - the kind of word writers most often double-check.

Unranked
below top-frequency English
10
letters

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Hardness.

Key facts for induration
PropertyValue
Headwordinduration
LanguageEnglish
Part of speechNoun
IPA/ɪndjʊˈɹeɪʃən/
Letters10
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “induration” sits in English frequency

induration falls outside the top-100,000 ranked English words, the long-tail zone of technical, archaic, or low-frequency vocabulary, exactly where readers second-guess spellings most.

Beyond rank #100,000. Source: FrequencyWords open word-frequency list.

Spelling & Dictionary Insight

The English entry for induration is 10 letters long, classified as a noun, and transcribed in the International Phonetic Alphabet as /ɪndjʊˈɹeɪʃən/. It sits outside the most-frequent rank tiers, which is often why uncommon words generate more spelling variants per reader. Wiktionary records 7 distinct senses for this headword, so context determines which meaning a reader should apply.

We couldn't generate a plausible misspelling set for induration, suggesting the orthography follows predictable English patterns. We don't track a confusable pairing for this entry, since no other headword is close enough in sound or shape to pair with it.

Etymologically, the entry records: From Middle English induracioun, from Old French induracion (“hardness, obstinacy”) or directly from Medieval Latin induratiō. The correct English form is induration, spelled I-N-D-U-R-A-T-I-O-N.

Definition

  1. 1
    Hardness.
  2. 2
    An enduring presence; fixity.
  3. 3
    The process of becoming hard.
  4. 4
    A hardening of an area of the body as a reaction to inflammation, hyperemia, or neoplastic infiltration.
  5. 5
    An area or part of the body that has undergone such a reaction.
  6. 6
    The quality of nonfriability; the extent to which a rock does not crumble; rock strength.
  7. 7
    The process of the strengthening of rocks by heating, compaction or cementation, or a combination thereof.

Etymology

From Middle English induracioun, from Old French induracion (“hardness, obstinacy”) or directly from Medieval Latin induratiō.

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "induration"?
"induration" is spelled I-N-D-U-R-A-T-I-O-N. The IPA pronunciation is /ɪndjʊˈɹeɪʃən/.
What does "induration" mean?
As a noun, "induration" means: Hardness.
How do you pronounce "induration"?
The IPA (International Phonetic Alphabet) transcription for "induration" is /ɪndjʊˈɹeɪʃən/. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What is the origin of the word "induration"?
From Middle English induracioun, from Old French induracion (“hardness, obstinacy”) or directly from Medieval Latin induratiō. 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 “induration”

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

  • The one correct English spelling is I-N-D-U-R-A-T-I-O-N - every other letter order is a misspelling in standard orthography.
  • Say it as /ɪndjʊˈɹeɪʃən/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
  • Browse more English words and confusable pairs in the same reference. English words
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 FrequencyWords open word-frequency list