ischium

American  

[is-kee-uhm] / ˈɪs ki əm /

noun

Anatomy.

ischia plural

1. the lower portion of either innominate bone.

2. either of the bones on which the body rests when sitting.

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ischium British  

/ ˈɪskɪəm /

noun

1. one of the three sections of the hipbone, situated below the ilium

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ischium Scientific  

/ ĭs′kē-əm /

ischia plural

1. The lowest of the three major bones that constitute each half of the pelvis, distinct at birth but later becoming fused with the ilium and pubis.

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Usage

What is ischial tuberosity? Ischial tuberosity is the name for the part of the pelvis that supports a person while sitting. How to pronounce ischial tuberosity[ is-kee-uhl too-buh-ros-i-tee ]

Other Word Forms

Derived Forms

• ischial
  adjective
• ischiadic
  adjective
• ischiatic
  adjective

Inflected Forms

noun

• ischia
  plural

Etymology

Origin of ischium

1640–50; < Latin < Greek ischíon hip-joint

Example Sentences

Its ischium, a pelvic bone, has a strong kink in it, compared to the more banana-like ischium from other fossils.

From Science Magazine • Jun. 20, 2024

The hip bone consists of three regions: the ilium, ischium, and pubis.

From Textbooks • Jun. 19, 2013

The posterior margin of the ischium has the shallow lesser sciatic notch and the ischial spine, which separates the greater and lesser sciatic notches.

From Textbooks • Jun. 19, 2013

The slightly curved posterior margin of the ischium above the ischial tuberosity is the lesser sciatic notch.

From Textbooks • Jun. 19, 2013

Operation.—A line drawn from the centre of the space between the tuberosity of the ischium or the great trochanter to a corresponding point between the condyles of the femur will give the direction.

From A Manual of the Operations of Surgery For the Use of Senior Students, House Surgeons, and Junior Practitioners by Bell, Joseph