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[ee-skyah] /ˈi skyɑ/
an Italian island in the Tyrrhenian Sea, W of Naples: earthquake 1883. 18 sq. mi. (47 sq. km).
a seaport on this island.


[is-kee-uh m] /ˈɪs ki əm/
noun, plural ischia
[is-kee-uh] /ˈɪs ki ə/ (Show IPA).
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
Related forms
[is-kee-ad-ik] /ˌɪs kiˈæd ɪk/ (Show IPA),
[is-kee-at-ik] /ˌɪs kiˈæt ɪk/ (Show IPA),
ischial, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for Ischia
Historical Examples
  • "There is a thunder-storm coming up from Ischia, I believe," said Artois.

    A Spirit in Prison Robert Hichens
  • Francesco was born in the castle on Ischia in 1489, and was one year older than Vittoria.

    Italy, the Magic Land Lilian Whiting
  • May 27th he seized him in the name of King Ferdinand and confined him in the castle of Ischia.

    Lucretia Borgia Ferdinand Gregorovius
  • It was of this that Ibsen said he could not have written it any nearer home than Ischia and Sorrento.

  • The central feature of Ischia is the great crater of Epomeo (a, Fig. 14).

  • There are two distinct periods in the geological history of Ischia.

  • It is six or seven hours from here to Ischia, if the wind holds.

    To Leeward

    F. Marion Crawford
  • Off Ischia we had the news that put the Admiral into a fury we were glad to see him in again.

    The Admiral Douglas Sladen
  • So even in Ischia there is danger from those wolves, is there?

    Historic Girlhoods Rupert S. Holland
  • It appears, therefore, that she must have quitted Ischia previously.

British Dictionary definitions for Ischia


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


noun (pl) -chia (-kɪə)
one of the three sections of the hipbone, situated below the ilium
Derived Forms
ischial, adjective
Word Origin
C17: from Latin: hip joint, from Greek iskhion
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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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
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Ischia in Medicine

ischium is·chi·um (ĭs'kē-əm)
n. pl. is·chi·a (-kē-ə)
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. Also called ischial bone.

is'chi·ad'ic (-ād'ĭk) adj.
is'chi·al (-əl) adj.
is'chi·at'ic (-āt'ĭk) adj.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Ischia in Science
Plural ischia
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 © 2002. Published by Houghton Mifflin. All rights reserved.
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