- an Italian island in the Tyrrhenian Sea, W of Naples: earthquake 1883. 18 sq. mi. (47 sq. km).
- a seaport on this island.
- the lower portion of either innominate bone.
- either of the bones on which the body rests when sitting.
Origin of ischium
1640–50; < Latin < Greek ischíon hip-joint
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for ischia
"There is a thunder-storm coming up from Ischia, I believe," said Artois.A Spirit in Prison
Francesco was born in the castle on Ischia in 1489, and was one year older than Vittoria.Italy, the Magic Land
May 27th he seized him in the name of King Ferdinand and confined him in the castle of Ischia.Lucretia Borgia
It was of this that Ibsen said he could not have written it any nearer home than Ischia and Sorrento.Figures of Several Centuries
The central feature of Ischia is the great crater of Epomeo (a, Fig. 14).A Study of Recent Earthquakes
- a volcanic island in the Tyrrhenian Sea, at the N end of the Bay of Naples. Area: 47 sq km (18 sq miles)
- one of the three sections of the hipbone, situated below the ilium
C17: from Latin: hip joint, from Greek iskhion
Word Origin and History for ischia
"the seat bone," 1640s, from Latin, from Greek iskhion "hip joint," in plural, "the hips," probably from iskhi "loin," of unknown origin.
Online Etymology Dictionary, © 2010 Douglas Harper
- 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
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
- 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.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.