Standard Lemma guide

sacrum

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

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  • General-American, Received-Pronunciation: /ˈsækɹəm/
  • General-American, Received-Pronunciation: /ˈseɪkɹəm/
  • Southern-England: Recorded audio is listed in the source snapshot.
  • US: Recorded audio is listed in the source snapshot.

1

noun

Meaning 1

A large triangular bone at the base of the spine, located between the two ilia (wings of the pelvis) and formed from vertebrae that fuse in adulthood.

Definition source: English Wiktionary via Wiktextract

Topics: anatomy, medicine, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: holy bone

Antonyms: none provided

2

noun

Meaning 2

wedge-shaped bone consisting of five fused vertebrae forming the posterior part of the pelvis; its base connects with the lowest lumbar vertebra and its tip with the coccyx

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: bone, os

History

Etymology

From Latin os sacrum (“holy bone”), a calque of Ancient Greek ἱερὸν ὀστέον (hieròn ostéon). Apparently so called either because the sacrum was the part of the animal offered in sacrifice or because of a putative belief that it is where a person's soul resides. A third explanation is that the term is a translation of Ancient Greek ἱερόν (hierón), which has two meanings: “holy, sacred”, and “big” — big being a more appropriate description of the sacrum — but compare.

Across languages

Translations

51 source translations are retained for this English entry.

  • Arabic: عَجُزِ (ʕajuzi) — bone at the base of the spine
  • Armenian: սրբոսկր (srboskr) — bone at the base of the spine
  • Bashkir: һигеҙгүҙ (higeźgüź) — bone at the base of the spine
  • Bulgarian: кръст (krǎst) — bone at the base of the spine
  • Bulgarian: кръстна кост (krǎstna kost) — bone at the base of the spine
  • Catalan: sacre — bone at the base of the spine
  • Cebuano: kugongkugong — bone at the base of the spine
  • Chinese Mandarin: 骶骨 (dǐgǔ) — bone at the base of the spine
  • Czech: kost křížová — bone at the base of the spine
  • Czech: kříž — bone at the base of the spine
  • Dutch: heiligbeen — bone at the base of the spine
  • Finnish: ristiluu — bone at the base of the spine
  • French: sacrum — bone at the base of the spine
  • German: Kreuzbein — bone at the base of the spine
  • Greek: ιερό οστό (ieró ostó) — bone at the base of the spine
  • Hebrew: עצם העָצֶה — bone at the base of the spine
  • Hungarian: keresztcsont — bone at the base of the spine
  • Icelandic: spjaldbein — bone at the base of the spine
  • Icelandic: spjaldliðir — bone at the base of the spine
  • Icelandic: spjaldhryggur — bone at the base of the spine
  • Ingrian: ristipiiluu — bone at the base of the spine
  • Irish: sacram — bone at the base of the spine
  • Italian: osso sacro — bone at the base of the spine
  • Japanese: 仙骨 (senkotsu) — bone at the base of the spine
  • Japanese: 薦骨 (senkotsu) — bone at the base of the spine
  • Korean: 엉치뼈 (eongchippyeo) — bone at the base of the spine
  • Korean: 천골 (cheon'gol) — bone at the base of the spine
  • Northern Kurdish: sêbende — bone at the base of the spine
  • Māori: poroiwi — bone at the base of the spine
  • Māori: tikitona — bone at the base of the spine
  • Māori: tiraki — bone at the base of the spine
  • Māori: tiki — bone at the base of the spine
  • Mongolian: ууц (uuc) — bone at the base of the spine
  • Mongolian: ууцан яс (uucan jas) — bone at the base of the spine
  • Mongolian: туух нуруу (tuux nuruu) — bone at the base of the spine
  • Persian: استخوان خاجی — bone at the base of the spine
  • Polish: krzyż — bone at the base of the spine
  • Polish: kość krzyżowa — bone at the base of the spine
  • Portuguese: sacro — bone at the base of the spine
  • Russian: кресте́ц (krestéc) — bone at the base of the spine
  • Serbo-Croatian: krstača — bone at the base of the spine
  • Spanish: sacro — bone at the base of the spine
  • Spanish: hueso sacro — bone at the base of the spine
  • Swedish: korsben — bone at the base of the spine
  • Tagalog: kuyukot — bone at the base of the spine
  • Telugu: త్రికము (trikamu) — bone at the base of the spine
  • Turkish: sakrum — bone at the base of the spine
  • Ukrainian: крижі (kryži) — bone at the base of the spine
  • Vietnamese: xương mông — bone at the base of the spine
  • Welsh: sacrwm — bone at the base of the spine
  • Welsh: asgwrn y cwman — bone at the base of the spine