Fluorescein

created by Webster 1913
(thing) by Jeeves (5.7 y) (print)   (I like it!) Sat Aug 12 2000 at 0:01:11
Fluorescein is used in medicine to diagnose corneal ulcers and certain other eye disorders. A solution of the chemical is dripped into the eye, and a type of fluorescent light is shined into it. Ulcerated areas will glow green under the light, which confirms the presence of ulcers and pinpoints their locations.
(definition) by Webster 1913 (print) Tue Dec 21 1999 at 23:42:42

Flu`o*res"ce*in (?), n. Chem.

A yellowish red, crystalline substance, C20H12O5, produced by heating together phthalic anhydride and resorcin; -- so called, from the very brilliant yellowish green fluorescence of its alkaline solutions. It has acid properties, and its salts of the alkalies are known to the trade under the name of uranin.

 

© Webster 1913.

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