ischium

[ is-kee-uhm ]

noun

, Anatomy.

, plural is·chi·a [is, -kee-, uh].

1. the lower portion of either innominate bone.
2. either of the bones on which the body rests when sitting.

ischium

/ ˈɪskɪəm /

noun

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

ischium

/ ĭs′kē-əm /

, Plural ischia

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.

Derived Forms

• ˈischial, adjective

Other Words From

• is·chi·ad·ic [is-kee-, ad, -ik], is·chi·at·ic [is-kee-, at, -ik], ischi·al adjective

Word History and Origins

Origin of ischium¹

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

Word History and Origins

Origin of ischium¹

C17: from Latin: hip joint, from Greek iskhion

Example Sentences

In the pelvic girdle the ilium corresponds to the scapula, the ischium to the coracoid, the pubis to the clavicle.

From Project Gutenberg

They are unknown in any other existing animals, unless present in Crocodiles, in which ischium and pubis are always undivided.

From Project Gutenberg

There is some difference in the pubis and ischium which is more conspicuous in form than in direction of the bones.

From Project Gutenberg

The pubis is slender, and the ischium is elevated and robust.

From Project Gutenberg

The body of the ischium in this case was fractured and a rent in the bladder was caused by a sharp projecting piece of bone.

From Project Gutenberg