noun Ophthalmology.
a pathological condition of vision in which a single object appears double (opposed to haplopia ).
Also called double vision.

1805–15; < Neo-Latin; see diplo-, -opia

diplopic [dih-plop-ik, -ploh-pik] , adjective
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World English Dictionary
diplopia (dɪˈpləʊpɪə)
a visual defect in which a single object is seen in duplicate; double vision. It can be caused by incorrect fixation or by an abnormality in the visual system
[C19: New Latin, from diplo- + Greek ōps eye]

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American Heritage
Medical Dictionary

diplopia di·plo·pi·a (dĭ-plō'pē-ə)
See double vision.

di·plo'pic (-plō'pĭk, -plŏp'ĭk) adj.
The American Heritage® Stedman's Medical Dictionary
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American Heritage
Science Dictionary
diplopia   (dĭ-plō'pē-ə)  Pronunciation Key 
A disorder of vision in which a single object appears double.
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Example sentences
Eye movement disorders: diplopia, nystagmus, and other ocular oscillations.
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