definitions

exophthalmos

[ ek-sof-thal-muh s, -mos ]
/ ˌɛk sɒfˈθæl məs, -mɒs /
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noun Pathology.

protrusion of the eyeball from the orbit, caused by disease, especially hyperthyroidism, or injury.

Nearby words

exophoric, exophthalmic, exophthalmic goiter, exophthalmic goitre, exophthalmic ophthalmoplegia, exophthalmos, exophytic, exoplanet, exoplasm, exopodite, exopterygote
Also ex·oph·thal·mus [ek-sof-thal-muh s] /ˌɛk sɒfˈθæl məs/, ex·oph·thal·mi·a [ek-sof-thal-mee-uh] /ˌɛk sɒfˈθæl mi ə/.

Origin of exophthalmos

1870–75; < New Latin < Greek exóphthalmos with prominent eyes, equivalent to ex- ex-3 + ophthalmós eye; see ophthalmic

Related forms

ex·oph·thal·mic, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for exophthalmos

British Dictionary definitions for exophthalmos

exophthalmos

exophthalmus (ˌɛksɒfˈθælməs) or exophthalmia (ˌɛksɒfˈθælmɪə)

/ (ˌɛksɒfˈθælmɒs) /

noun

abnormal protrusion of the eyeball, as caused by hyperthyroidismAlso called: proptosis, ocular proptosis

Derived Forms

exophthalmic, adjective

Word Origin for exophthalmos

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

Medicine definitions for exophthalmos

exophthalmos

[ ĕk′səf-thăl′məs ]

n.

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.