D defs.my
Entry 1 sense Webster, 1913

Fluorescin

· Flu·o·res·cin · IPA
01 n. A colorless, amorphous substance which is produced by the reduction of fluoresceïn, and from which the latter may be formed by oxidation.
  1. 1.
    A colorless, amorphous substance which is produced by the reduction of fluoresceïn, and from which the latter may be formed by oxidation.(Chem.)