œstrus

\ɛs.tʁys\

/\ɛs.tʁys\/ noun

The verdict

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

Unranked
below top-frequency French
6
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Période du cycle sexuel d’une femelle, durant laquelle elle est fécondable.

Corpus desk

Index FR-strus · œstrus · French

œstrus · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-LONG 6 letters
  • VOW-2 2 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "Œ" 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 œstrus
PropertyValue
Headwordœstrus
LanguageFrench
Part of speechNoun
IPA\ɛs.tʁys\
Letters6
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Longue queue: rang de « œstrus » en français

œstrusreste 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

œstrus is uncommon French outside the top frequency list, classed as anoun, transcribed \ɛs.tʁys\. Rarity is why readers land here mid-draft. 2 senses are on record.

No misspelling variants are generated for œstrus in our index, typically a sign the spelling maps closely to how the word sounds. This entry stands alone in our confusable dataset, since no other headword is close enough in sound or shape to pair with it.

This headword's origin isn't recorded in our source data, so its spelling is easiest explained by how it's pronounced rather than where it came from. The correct French form is œstrus, spelled Œ-S-T-R-U-S.

Definition

  1. 1
    Période du cycle sexuel d’une femelle, durant laquelle elle est fécondable.
  2. 2
    Période pendant laquelle la femelle manifeste un comportement particulier, dont le signe caractéristique est l’acceptation de l’accouplement.

Recorded use

Wiktionary examples

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

  1. […] La bipédie permanente et la pilosité pubienne dissimulent le sexe des femmes, qui, par ailleurs, n'ont plus d'œstrus (chez les grands singes, la période d'ovulation se caractérise par la tumescence colorée de la vulve).[…]
  2. Dans les groupes sociaux à promiscuité, comme les lions, une femelle en œstrus peut avoir jusque cent copulations par jour avec différents mâles.

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 "œstrus"?
"œstrus" is spelled Œ-S-T-R-U-S. The IPA pronunciation is \ɛs.tʁys\.
What does "œstrus" mean?
As a noun, "œstrus" means: Période du cycle sexuel d’une femelle, durant laquelle elle est fécondable.
How do you pronounce "œstrus"?
The IPA (International Phonetic Alphabet) transcription for "œstrus" is \ɛs.tʁys\. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What language does "œstrus" come from?
"œstrus" is a French word. You can look up definitions, pronunciations, and spelling data for this and other words across English, Spanish, Portuguese, French, and German on PlainSpell.
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