pericardium
/ˌpɛɹɪˈkɑː(ɹ)di.əm/
"pericardium" is a 11-letter English headword indexed on PlainSpell.
The verdict
“pericardium” is uncommon English (frequency #84,605 among 4,417 “P” headwords), classed as a noun. The kind of spelling people second-guess.
- #84,605
- frequency rank, English
- 4,417
- “P” headwords
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - A serous membrane that surrounds the heart allowing it to contract.
Corpus desk
Index EN-pericardium · pericardium · English
pericardium · rank #84,605 · 0 variants · 0 confusables
- FREQ-RARE #84,605
- LEN-MEGA 11 letters
- VOW-5 5 vowels
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-MID 4,417
- PHOTO-FINISH pendulous
Nearest frequency peer: pendulous (-2 rank slots)
Read with this headword: Spelling guide for this pattern
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.
Long-tail ranks near “pericardium”
Sparse band: bars invert rank so rarer forms read shorter
- Pavlovian
Pavlovian
15,400 corpus weight
- pendulous
pendulous
15,398 corpus weight
- pericardium
pericardium
15,396 corpus weight
- Petrovic
Petrovic
15,394 corpus weight
- physiognomy
physiognomy
15,393 corpus weight
- Pictou
Pictou
15,392 corpus weight
What this shows Long-tail view: where “pericardium” sits against similarly uncommon English ranks.
| Property | Value |
|---|---|
| Headword | pericardium |
| Language | English |
| Part of speech | Noun |
| IPA | /ˌpɛɹɪˈkɑː(ɹ)di.əm/ |
| Letters | 11 |
| Frequency rank | #84,605 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Long-tail rank of “pericardium” in English
Rare enough to double-check
pericardium is uncommon English at frequency #84,605 among 4,417 “P” headwords, classed as anoun, transcribed /ˌpɛɹɪˈkɑː(ɹ)di.əm/. Rarity is why readers land here mid-draft. Gloss: "A serous membrane that surrounds the heart allowing it to contract.".
Zero misspellings are on record for pericardium in our index, and the word's spelling is regular enough that our generator found nothing worth flagging. Our dataset records no confusable match here, suggesting its spelling stands apart enough that readers rarely confuse it with something else.
Etymologically, the entry records: Learned borrowing from Ancient Greek περικάρδιον (perikárdion). The correct English form is pericardium, spelled P-E-R-I-C-A-R-D-I-U-M.
Definition
- 1A serous membrane that surrounds the heart allowing it to contract.
Recorded use
Wiktionary exampleThese source excerpts show how pericardium appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.
The Pericardium is sometimes swelled, as overcharged with too great a quantity of Serous Liquor, making a kind of Dropsie […]
Etymology
Learned borrowing from Ancient Greek περικάρδιον (perikárdion).
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); frequency ordering uses the FrequencyWords open word-frequency list (2018 English corpus, MIT). See the methodology for how each field is sourced and updated.
Frequently Asked Questions
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Similar English words by spelling shape
Same letter count and similar misspelling depth for "pericardium", not the corpus desk frequency band.
Same letter count
Frequency-ranked English headwords with 11 letters (nearest by frequency rank).