Standard Lemma guide

ischium

noun · 2 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.

  • UK: /ˈɪskɪəm/
  • General-American: /ˈɪskiəm/

1

noun

Meaning 1

The lowest of the three bones that make up each side of the pelvis.

Definition source: English Wiktionary via Wiktextract

Topics: anatomy, medicine, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

one of the three sections of the hipbone; situated below the ilium

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: ischial bone, os ischii

Antonyms: none provided

Broader terms: bone, os

History

Etymology

17th century, from Latin ischium, from Ancient Greek ἰσχίον (iskhíon, “hip joint”).

Across languages

Translations

21 source translations are retained for this English entry.

  • Catalan: isqui — the lowest of three bones of the pelvis
  • Catalan: ísquium — the lowest of three bones of the pelvis
  • Chinese Mandarin: 坐骨 (zuògǔ) — the lowest of three bones of the pelvis
  • Dutch: zitbeen — the lowest of three bones of the pelvis
  • Finnish: istuinluu — the lowest of three bones of the pelvis
  • French: ischion — the lowest of three bones of the pelvis
  • French: ischium — the lowest of three bones of the pelvis
  • German: Sitzbein — the lowest of three bones of the pelvis
  • German: Ischium — the lowest of three bones of the pelvis
  • Hungarian: ülőcsont — the lowest of three bones of the pelvis
  • Hungarian: ülőgumó — the lowest of three bones of the pelvis
  • Italian: ischio — the lowest of three bones of the pelvis
  • Japanese: 坐骨 (zakotsu) — the lowest of three bones of the pelvis
  • Northern Kurdish: hestiyê qûnê — the lowest of three bones of the pelvis
  • Polish: kość kulszowa — the lowest of three bones of the pelvis
  • Portuguese: ísquio — the lowest of three bones of the pelvis
  • Russian: седа́лищная кость (sedáliščnaja kostʹ) — the lowest of three bones of the pelvis
  • Serbo-Croatian: sednjača — the lowest of three bones of the pelvis
  • Spanish: isquion — the lowest of three bones of the pelvis
  • Swedish: sittben — the lowest of three bones of the pelvis
  • Volapük: skiad — the lowest of three bones of the pelvis