Definition of keratoconjunctivitis
: combined inflammation of the cornea and conjunctiva
especially
: an infectious often epidemic disease that is caused by an adenovirus (especially serotypes of species Human adenovirus B and Human adenovirus D of the genus Mastadenovirus) and is marked by pain, redness and swelling of the conjunctiva, edema of the tissues around the eye, and tenderness of the adjacent lymph nodes
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Merriam-Webster unabridged
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Time Traveler for keratoconjunctivitis
The first known use of keratoconjunctivitis was in 1887
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