hydroperitoneum

noun

"hydroperitoneum" is a 15-letter English headword indexed on PlainSpell.

The verdict

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

Unranked
below top-frequency English
15
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - The accumulation of fluid in the peritoneum

Corpus desk

Index EN-hydroperitoneum · hydroperitoneum · English

hydroperitoneum · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-MEGA 15 letters
  • VOW-7 7 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "H" 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 hydroperitoneum
PropertyValue
Headwordhydroperitoneum
LanguageEnglish
Part of speechNoun
Letters15
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “hydroperitoneum” in English

hydroperitoneumfalls 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

hydroperitoneum is uncommon English outside the top frequency list, classed as anoun. Rarity is why readers land here mid-draft. Gloss: "The accumulation of fluid in the peritoneum".

No misspelling variants are generated for hydroperitoneum in our index, which points to an orthography that plays by predictable English rules. No confusable counterpart is on file for this word, suggesting its spelling stands apart enough that readers rarely confuse it with something else.

Etymologically, the entry records: From hydro- + peritoneum. The correct English form is hydroperitoneum, spelled H-Y-D-R-O-P-E-R-I-T-O-N-E-U-M.

Definition

  1. 1
    The accumulation of fluid in the peritoneum

Recorded use

Wiktionary examples

These source excerpts show how hydroperitoneum appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.

  1. If uniformity could be preserved throughout, we ought, however, to say hydroperitoneum, in place of ascites, hydropneumonia, for edema of the lungs, hydroarachnoid, for hydrocephalus, hydropleura, for hydrothorax, and hydrovarium, for dropsy of the ovaries.
  2. In the greater proportion of cases hydroperitoneum causes no difficulty.

Etymology

From hydro- + peritoneum.

Synonyms

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 "hydroperitoneum"?
"hydroperitoneum" is spelled H-Y-D-R-O-P-E-R-I-T-O-N-E-U-M.
What does "hydroperitoneum" mean?
As a noun, "hydroperitoneum" means: The accumulation of fluid in the peritoneum
What is the origin of the word "hydroperitoneum"?
From hydro- + peritoneum. See the full etymology section above for more details.
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