fluorescein

play
noun fluo·res·ce·in \flu̇-ˈre-sē-ən, flȯ-\

Definition of fluorescein

  1. :  a yellow or red crystalline dye C20H12O5 with a bright yellow-green fluorescence in alkaline solution

Recent Examples of fluorescein from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'fluorescein'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of fluorescein

1871


Medical Dictionary

fluorescein

play
noun flu·o·res·ce·in \-ˈes-ē-ən\

Medical Definition of fluorescein

  1. :  a yellow or red crystalline dye C20H12O5 with a bright yellow-green fluorescence in alkaline solution that is used as the sodium salt as an aid in diagnosis (as of lesions and foreign bodies in the cornea or of brain tumors)


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