ophthalmo-reaction
noun
oph·thal·mo-re·ac·tion
| \ -rē-ˈak-shən
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Medical Definition of ophthalmo-reaction
: a serological diagnostic reaction in a test formerly used that involved placing a test antigen (as tuberculin) on the mucous membrane of the eye with infection being indicated by a positive response characterized by hyperemia, swelling, and lacrimation