opérculo

[oˈpeɾkulo]

/[oˈpeɾkulo]/ noun

The verdict

“opérculo” is uncommon Spanish (frequency #87,067 among 1,467 “O” headwords), classed as a noun. The kind of spelling people second-guess.

#87,067
frequency rank, Spanish
1,467
“O” headwords

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Repliegue de la piel que proporciona protección externa al aparato branquial en la mayoría de los peces, suele estar endurecido por placas óseas y cubierto por escamas.

Corpus desk

Index ES-operculo · opérculo · Spanish

opérculo · rank #87,067 · 0 variants · 0 confusables

  • FREQ-RARE #87,067
  • LEN-LONG 8 letters
  • VOW-4 4 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-MID 1,467
  • PHOTO-FINISH ondulados

Nearest frequency peer: ondulados (-2 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 “opérculo”

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 “opérculo” se sitúa frente a rangos españoles igualmente raros.

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for opérculo
PropertyValue
Headwordopérculo
LanguageSpanish
Part of speechNoun
IPA[oˈpeɾkulo]
Letters8
Frequency rank#87,067
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Cola larga: rango de “opérculo” en español

Esta escala corre desde el núcleo del español cotidiano (izquierda) hasta el rastro de formas rara vez usadas (derecha).opérculocae en esta cola de rareza:

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

El eje es logarítmico: cada tick marca unas diez veces menos frecuencia. Vecinos raros de la misma franja: “ondulados” (#87,065), “ordinales” (#87,069), “Oller” (#87,063). Entre 1,467 lemas con “O”, “opérculo” va en #87,067. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

opérculo is uncommon Spanish at frequency #87,067 among 1,467 “O” headwords, classed as anoun, transcribed [oˈpeɾkulo]. Rarity is why readers land here mid-draft. 3 senses are on record.

No generated misspelling entries exist for opérculo in our index, suggesting the orthography follows predictable Spanish patterns. No close-neighbour confusable shows up for this headword in our dataset, since its spelling is unusual enough that it doesn't cluster with a lookalike.

This entry carries no recorded etymology, so its spelling is best read as a straightforward mapping from sound to letter. The correct Spanish form is opérculo, spelled O-P-É-R-C-U-L-O.

Definition

  1. 1
    Repliegue de la piel que proporciona protección externa al aparato branquial en la mayoría de los peces, suele estar endurecido por placas óseas y cubierto por escamas.
  2. 2
    Especie de válvula o tapa que cubre algún hueco.
  3. 3
    La valva de las conchas que se cierra sobre la otra.

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 "opérculo"?
"opérculo" is spelled O-P-É-R-C-U-L-O. The IPA pronunciation is [oˈpeɾkulo].
What does "opérculo" mean?
As a noun, "opérculo" means: Repliegue de la piel que proporciona protección externa al aparato branquial en la mayoría de los peces, suele estar endurecido por placas óseas y cubierto por escamas.
How do you pronounce "opérculo"?
The IPA (International Phonetic Alphabet) transcription for "opérculo" is [oˈpeɾkulo]. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What language does "opérculo" come from?
"opérculo" is a Spanish word. PlainSpell's reference spans five languages -- English, Spanish, Portuguese, French, and German -- with definitions, pronunciations, and spelling data for each.
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 "opérculo", not the corpus desk frequency band.

Same letter count

Frequency-ranked Spanish headwords with 8 letters (nearest by frequency rank).

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

Source: FrequencyWords open word-frequency list