ischia

noun

1. an Italian island in the Tyrrhenian Sea, W of Naples: earthquake 1883. 18 sq. mi. (47 sq. km).
2. a seaport on this island.

noun, plural is·chi·a [is-kee-uh] /ˈɪs ki ə/. Anatomy.

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

noun

1. a volcanic island in the Tyrrhenian Sea, at the N end of the Bay of Naples. Area: 47 sq km (18 sq miles)

noun plural -chia (-kɪə)

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

n.

“the seat bone,” 1640s, from Latin, from Greek iskhion “hip joint,” in plural, “the hips,” probably from iskhi “loin,” of unknown origin.

n. pl. is•chi•a (-kē-ə)

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.ischial bone

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.