different between ilium vs sacroiliac

English

Alternative forms

• ilion (4th to 7th centuries)

Etymology

Borrowed from Latin ?lium (“lower abdomen”), from ?le (“flank”).

Pronunciation

• (UK) IPA^(key): /??l??m/
• Rhymes: -?li?m

Noun

ilium (plural ilia)

1. (anatomy) The upper and widest of the three bones that make up each side of the hipbone and pelvis.
2. (anatomy, obsolete) The ileum, part of the small intestine.

Usage notes

In modern usage, ilium always refers to the bones of the hip and pelvis while ileum always refers to the part of the small intestine. To remember the different spellings, one rule is that there is an i in the middle of both ilium and hip.

Coordinate terms

• ischium
• pubis

Derived terms

• iliac

Translations

Latin

Pronunciation

• (Classical) IPA^(key): /?i?.li.um/, [?i?li???]
• (Ecclesiastical) IPA^(key): /?i.li.um/, [?i?lium]

Etymology 1

(This etymology is missing or incomplete. Please add to it, or discuss it at the Etymology scriptorium.)

Noun

?lium n (genitive ?li? or ?l?); second declension

1. Alternative form of ?le.

Inflection

Second-declension noun (neuter).

¹Found in older Latin (until the Augustan Age).

Descendants

• ? English: ilium

Etymology 2

See the etymology of the main entry.

Noun

?lium n

1. genitive plural of ?le

References

• ilium in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
• ilium in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers
• ilium in Gaffiot, Félix (1934) Dictionnaire illustré Latin-Français, Hachette
• ilium in The Perseus Project (1999) Perseus Encyclopedia?^[1]
• ilium in Harry Thurston Peck, editor (1898) Harper's Dictionary of Classical Antiquities, New York: Harper & Brothers
• ilium in William Smith, editor (1854, 1857) A Dictionary of Greek and Roman Geography, volume 1 & 2, London: Walton and Maberly

English

Etymology

sacro- +? iliac

Pronunciation

• IPA^(key): /?sæk?o???li?æk/

Adjective

sacroiliac (not comparable)

1. (anatomy) Relating to the sacrum and ilium, or to the region of the lower back where they are located.

Synonyms

• iliosacral

Translations

Noun

sacroiliac (plural sacroiliacs)

1. (anatomy) The region of the sacrum and the ilium in the lower back.