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 46,516 “P” headwords), classed as a noun. The kind of spelling people second-guess.
- #84,605
- frequency rank, English
- 46,516
- “P” headwords
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - A serous membrane that surrounds the heart allowing it to contract.
| 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) |
Where “pericardium” sits in English frequency
Rare enough to double-check
pericardium is uncommon English at frequency #84,605 among 46,516 “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.
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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Using “pericardium”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is P-E-R-I-C-A-R-D-I-U-M - every other letter order is a misspelling in standard orthography.
- Say it as /ˌpɛɹɪˈkɑː(ɹ)di.əm/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
- Browse more English words and confusable pairs in the same reference. English words
Other uncommon English words near this rank
Data Source
Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.