hyperpyrexie

\i.pɛʁ.pi.ʁɛk.si\

/\i.pɛʁ.pi.ʁɛk.si\/ noun

The verdict

“hyperpyrexie” is uncommon French (outside the top frequency list), classed as a noun. The kind of spelling people second-guess.

Unranked
below top-frequency French
12
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Fièvre intense, caractérisée par une augmentation de la température corporelle au-delà de 41.5 °C.

Corpus desk

Index FR-hyperpyrexie · hyperpyrexie · French

hyperpyrexie · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-MEGA 12 letters
  • VOW-6 6 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "H" thin
  • PHOTO-UNK Peer pending

Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.

Key facts for hyperpyrexie
PropertyValue
Headwordhyperpyrexie
LanguageFrench
Part of speechNoun
IPA\i.pɛʁ.pi.ʁɛk.si\
Letters12
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Longue queue: rang de « hyperpyrexie » en français

hyperpyrexiereste hors des 100.000 mots français les plus fréquents, dans la longue queue du vocabulaire technique, archaïque ou rare, là où le doute d'orthographe frappe.

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

Rare enough to double-check

hyperpyrexie is uncommon French outside the top frequency list, classed as anoun, transcribed \i.pɛʁ.pi.ʁɛk.si\. Rarity is why readers land here mid-draft. Gloss: "Fièvre intense, caractérisée par une augmentation de la température corporelle au-delà de 41.5 °C.".

The misspelling generator found no plausible variants for hyperpyrexie, since its letter pattern doesn't lend itself to common typo substitutions. This headword has no recorded confusable partner, since no other headword is close enough in sound or shape to pair with it.

No borrowing history is documented for this entry, so spelling patterns must be inferred from the word's phoneme-to-grapheme mapping rather than from a documented borrowing chain. The correct French form is hyperpyrexie, spelled H-Y-P-E-R-P-Y-R-E-X-I-E.

Definition

  1. 1
    Fièvre intense, caractérisée par une augmentation de la température corporelle au-delà de 41.5 °C.

Recorded use

Wiktionary example

These source excerpts show how hyperpyrexie appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.

  1. Une hyperpyrexie entraînant une rhabdomyolyse ou un coup de chaleur s’est produite en raison du syndrome sérotoninergique ou d’une augmentation de l’activité physique sans que l’on reconnaisse les indices cliniques de surmenage, de températures élevées dans les clubs et de déshydratation.

Synonyms

This word in other languages

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 "hyperpyrexie"?
"hyperpyrexie" is spelled H-Y-P-E-R-P-Y-R-E-X-I-E. The IPA pronunciation is \i.pɛʁ.pi.ʁɛk.si\.
What does "hyperpyrexie" mean?
As a noun, "hyperpyrexie" means: Fièvre intense, caractérisée par une augmentation de la température corporelle au-delà de 41.5 °C.
How do you pronounce "hyperpyrexie"?
The IPA (International Phonetic Alphabet) transcription for "hyperpyrexie" is \i.pɛʁ.pi.ʁɛk.si\. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What language does "hyperpyrexie" come from?
"hyperpyrexie" is a French word. PlainSpell covers definitions, pronunciations, and spelling data across English, Spanish, Portuguese, French, and German.
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.

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

Source: FrequencyWords open word-frequency list