exophthalmos

noun

ex·​oph·​thal·​mos ˌek-säf-ˈthal-məs 

-səf-,

-säp-

variants or less commonly exophthalmus

: abnormal protrusion of the eyeball

exophthalmic

ˌek-säf-ˈthal-mik 

-səf-

-säp-

adjective

Examples of exophthalmos in a Sentence

Recent Examples on the Web

Bulging or protruding eyes (proptosis or exophthalmos) can be a sign of Graves disease, a disorder causing overactivity of the thyroid gland (hyperthyroidism). —Claire Gillespie, SELF, 19 Oct. 2017

Word History

Etymology

New Latin, from Greek exophthalmos having prominent eyes, from ex out + ophthalmos eye; akin to Greek ōps eye — more at eye

First Known Use

1872, in the meaning defined above

Medical Definition

exophthalmos

noun

ex·​oph·​thal·​mos

variants also exophthalmus

ˌek-säf-ˈthal-məs, -səf- 

: abnormal protrusion of the eyeball

exophthalmic

ˌek-säf-ˈthal-mik 

adjective