cardiac muscle

/ˌkɑːr.di.æk ˈmʌs.əl/

//ˌkɑːr.di.æk ˈmʌs.əl// noun

"cardiac-muscle" is a 13-letter English headword indexed on PlainSpell.

The verdict

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

Unranked
below top-frequency English
14
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - The striated and involuntary muscle of the vertebrate heart.

Corpus desk

Index EN-cardiac-muscle · cardiac muscle · English

cardiac muscle · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-MEGA 14 letters
  • VOW-5 5 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "C" thin
  • PHOTO-UNK Peer pending

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.

Key facts for cardiac muscle
PropertyValue
Headwordcardiac muscle
LanguageEnglish
Part of speechNoun
IPA/ˌkɑːr.di.æk ˈmʌs.əl/
Letters14
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “cardiac muscle” in English

cardiac musclefalls outside the top-100,000 ranked English words, the long-tail zone of technical, archaic, or low-frequency vocabulary, exactly where readers second-guess spellings most.

Beyond rank #100,000. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

cardiac muscle is uncommon English outside the top frequency list, classed as anoun, transcribed /ˌkɑːr.di.æk ˈmʌs.əl/. Rarity is why readers land here mid-draft. Gloss: "The striated and involuntary muscle of the vertebrate heart.".

We couldn't generate a plausible misspelling set for cardiac muscle, which points to an orthography that plays by predictable English rules. Our dataset records no confusable match here, since nothing in our dataset looks or sounds close enough to cause mix-ups.

This headword's origin isn't recorded in our source data, leaving phoneme-to-grapheme mapping as the best guide to its spelling rather than a borrowing history. The correct English form is cardiac muscle, spelled C-A-R-D-I-A-C- -M-U-S-C-L-E.

Definition

  1. 1
    The striated and involuntary muscle of the vertebrate heart.

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 "cardiac muscle"?
"cardiac muscle" is spelled C-A-R-D-I-A-C- -M-U-S-C-L-E. The IPA pronunciation is /ˌkɑːr.di.æk ˈmʌs.əl/.
What does "cardiac muscle" mean?
As a noun, "cardiac muscle" means: The striated and involuntary muscle of the vertebrate heart.
How do you pronounce "cardiac muscle"?
The IPA (International Phonetic Alphabet) transcription for "cardiac muscle" is /ˌkɑːr.di.æk ˈmʌs.əl/. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What language does "cardiac muscle" come from?
"cardiac muscle" is a English 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.

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

Source: FrequencyWords open word-frequency list