circulatory system
/ˌsɜːk(j)uːlətəɹi ˈsɪstəm/
"circulatory-system" is a 17-letter English headword indexed on PlainSpell.
The verdict
“circulatory system” is uncommon English (outside the top frequency list), classed as a noun. The kind of spelling people second-guess.
- Unranked
- below top-frequency English
- 18
- letters
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - The parts of an animal body comprising the heart, blood vessels (arteries, veins, and capillaries), and blood, which circulate the blood around the body.
Corpus desk
Index EN-circulatory-system · circulatory system · English
circulatory system · unranked · 0 variants · 0 confusables
- FREQ-UNRANKED Unranked
- LEN-MEGA 18 letters
- VOW-7 7 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.
| Property | Value |
|---|---|
| Headword | circulatory system |
| Language | English |
| Part of speech | Noun |
| IPA | /ˌsɜːk(j)uːlətəɹi ˈsɪstəm/ |
| Letters | 18 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Long-tail rank of “circulatory system” in English
Rare enough to double-check
circulatory system is uncommon English outside the top frequency list, classed as anoun, transcribed /ˌsɜːk(j)uːlətəɹi ˈsɪstəm/. Rarity is why readers land here mid-draft. 2 senses are on record.
Our edit-distance generator produced no likely misspellings for circulatory system, suggesting the orthography follows predictable English patterns. This entry stands alone in our confusable dataset, since no other headword is close enough in sound or shape to pair with it.
Etymologically, the entry records: From circulatory + system. The correct English form is circulatory system, spelled C-I-R-C-U-L-A-T-O-R-Y- -S-Y-S-T-E-M.
Definition
- 1The parts of an animal body comprising the heart, blood vessels (arteries, veins, and capillaries), and blood, which circulate the blood around the body.
- 2The parts of a machine responsible for the circulation of some fluid.
Etymology
From circulatory + system.
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). See the methodology for how each field is sourced and updated.