Free
English
Dictionary






A FREE English Dictionary Database from Spellcheck.co.uk.

You can check the meaning of one word, or a whole page.

Enter your query in the search box, or choose a letter from the menu below.

Try our SpellChecker here, or our English Thesaurus here.

 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Search:
 Exact Word  Within Words  Within Descriptions
Results:
Fluorescein (n.) 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.