ischium

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

• (UK) IPA^(key): /ˈɪskɪəm/
• (General American) IPA^(key): /ˈɪskiəm/

ischium (plural ischia)

1. (anatomy) The lowest of the three bones that make up each side of the pelvis. [from 17th c.]
   • 1953, Samuel Beckett, Watt, [Paris]: Olympia Press, →OCLC:

     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.

• ilium
• pubis

• ischiadic
• ischial
• ischiatic

• bone

• (Classical Latin) IPA^(key): [ˈɪs.kʰi.ũː]
• (modern Italianate Ecclesiastical) IPA^(key): [ˈis.ki.um]

ischium n (genitive ischiī or ischī); second declension

1. alternative form of ischion

Second-declension noun (neuter).

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