fibrilación

[fiβ̞ɾilaˈsjõn]

/[fiβ̞ɾilaˈsjõn]/ noun

The verdict

“fibrilación” is uncommon Spanish (frequency #55,601 among 2,333 “F” headwords), classed as a noun. The kind of spelling people second-guess.

#55,601
frequency rank, Spanish
2,333
“F” headwords

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Proceso de formación de fibrilas.

Corpus desk

Index ES-fibrilacion · fibrilación · Spanish

fibrilación · rank #55,601 · 0 variants · 0 confusables

  • FREQ-RARE #55,601
  • LEN-MEGA 11 letters
  • VOW-5 5 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-MID 2,333
  • PHOTO-FINISH fijes

Nearest frequency peer: fijes (+1 rank slots)

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.

Rangos de cola larga cerca de “fibrilación”

Banda escasa: las barras invierten el rango para que lo raro se lea más corto

corpus weight

What this shows Vista de cola larga: dónde “fibrilación” se sitúa frente a rangos españoles igualmente raros.

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for fibrilación
PropertyValue
Headwordfibrilación
LanguageSpanish
Part of speechNoun
IPA[fiβ̞ɾilaˈsjõn]
Letters11
Frequency rank#55,601
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Cola larga: rango de “fibrilación” en español

La frecuencia va del puñado de palabras que usamos sin parar (izquierda) a la cola larga que apenas aparece (derecha).fibrilacióncae en esta cola de rareza:

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

La escala es logarítmica (cada marca ≈ 10× más rara). Vecinos raros de la misma franja: “fijes” (#55,602), “festivas” (#55,599), “filisteos” (#55,603). Entre 2,333 lemas con “F”, “fibrilación” va en #55,601. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

fibrilación is uncommon Spanish at frequency #55,601 among 2,333 “F” headwords, classed as anoun, transcribed [fiβ̞ɾilaˈsjõn]. Rarity is why readers land here mid-draft. 4 senses are on record.

No generated misspelling entries exist for fibrilación in our index, a sign its spelling follows regular Spanish conventions. This entry stands alone in our confusable dataset, a sign it's visually distinctive enough not to be mixed up with another word.

No borrowing history is documented for this entry, so its spelling is best explained by sound-to-letter mapping rather than etymology. The correct Spanish form is fibrilación, spelled F-I-B-R-I-L-A-C-I-Ó-N.

Definition

  1. 1
    Proceso de formación de fibrilas.
  2. 2
    Temblor muscular.
  3. 3
    Ruptura de fibras de celulosa de la pulpa de madera para fabricación de papel.
  4. 4
    Contracciones arrítmicas de las fibrilas (musculares) del corazón. Pueden afectar a los atrios de los auriculares (fibrilación auricular o de los ventrículos (fibrilación ventricular).

Recorded use

Wiktionary example

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

  1. Una arritmia es un problema con la velocidad o el ritmo de los latidos del corazón. La fibrilación auricular es el tipo más común de arritmia causada por un problema en el sistema eléctrico del corazón. A menudo las personas con fibrilación auricular no se dan cuenta de los síntomas. Pero usted puede sentir: • Palpitaciones, latidos anormales o rápidos •…

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); frequency ordering uses the FrequencyWords open word-frequency list (2018 Spanish corpus, MIT). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "fibrilación"?
"fibrilación" is spelled F-I-B-R-I-L-A-C-I-Ó-N. The IPA pronunciation is [fiβ̞ɾilaˈsjõn].
What does "fibrilación" mean?
As a noun, "fibrilación" means: Proceso de formación de fibrilas.
How do you pronounce "fibrilación"?
The IPA (International Phonetic Alphabet) transcription for "fibrilación" is [fiβ̞ɾilaˈsjõn]. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What language does "fibrilación" come from?
"fibrilación" is a Spanish 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.

Similar Spanish words by spelling shape

Same letter count and similar misspelling depth for "fibrilación", not the corpus desk frequency band.

Same letter count

Frequency-ranked Spanish headwords with 11 letters (nearest by frequency rank).

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

Source: FrequencyWords open word-frequency list