ischium
/ˈɪskɪəm/
"ischium" is a 7-letter English headword indexed on PlainSpell.
The verdict
“ischium” is uncommon English (outside the top frequency list), classed as a noun. The kind of spelling people second-guess.
- Unranked
- below top-frequency English
- 7
- letters
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - The lowest of the three bones that make up each side of the pelvis.
Corpus desk
Index EN-ischium · ischium · English
ischium · unranked · 0 variants · 0 confusables
- FREQ-UNRANKED Unranked
- LEN-LONG 7 letters
- VOW-3 3 vowels
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-THIN "I" 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 | ischium |
| Language | English |
| Part of speech | Noun |
| IPA | /ˈɪskɪəm/ |
| Letters | 7 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Long-tail rank of “ischium” in English
Rare enough to double-check
ischium is uncommon English outside the top frequency list, classed as anoun, transcribed /ˈɪskɪəm/. Rarity is why readers land here mid-draft. Gloss: "The lowest of the three bones that make up each side of the pelvis.".
Zero misspellings are on record for ischium in our index, and the word's spelling is regular enough that our generator found nothing worth flagging. No confusable counterpart is on file for this word, which typically means the spelling is too distinctive to be mistaken for another word.
Etymologically, the entry records: 17th century, from Latin ischium, from Ancient Greek ἰσχίον (iskhíon, “hip joint”). The correct English form is ischium, spelled I-S-C-H-I-U-M.
Definition
- 1The lowest of the three bones that make up each side of the pelvis.
Recorded use
Wiktionary exampleThese source excerpts show how ischium appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.
And he still carried, after five or six years, and though he dressed it in a mirror night and morning, on his right ischium a running sore of traumatic origin.
Etymology
17th century, from Latin ischium, from Ancient Greek ἰσχίον (iskhíon, “hip joint”).
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.