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[ek-sof-thal-muh s, -mos] /ˌɛk sɒfˈθæl məs, -mɒs/
noun, Pathology.
protrusion of the eyeball from the orbit, caused by disease, especially hyperthyroidism, or injury.
Also, exophthalmus
[ek-sof-thal-muh s] /ˌɛk sɒfˈθæl məs/ (Show IPA),
[ek-sof-thal-mee-uh] /ˌɛk sɒfˈθæl mi ə/ (Show IPA)
Origin of exophthalmos
1870-75; < New Latin < Greek exóphthalmos with prominent eyes, equivalent to ex- ex-3 + ophthalmós eye; see ophthalmic
Related forms
exophthalmic, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for exophthalmia
Historical Examples
  • exophthalmia in animals born of parents in which an injury to the restiform body had produced that protrusion of the eyeball.

British Dictionary definitions for exophthalmia


abnormal protrusion of the eyeball, as caused by hyperthyroidism Also called proptosis, ocular proptosis
Derived Forms
exophthalmic, adjective
Word Origin
C19: via New Latin from Greek, from ex-1 + ophthalmos eye
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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exophthalmia in Medicine

exophthalmos ex·oph·thal·mos (ěk'səf-thāl'məs)
Abnormal protrusion of the eyeball.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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