xanthate

noun

Any salt or ester of xanthic acid.

xanthene

noun

Any of a group of tricyclic heterocycles (dibenzopyrans) that are the basis for a range of dyes... Lire la suite » ;

xanthine

noun

a crystalline compound found in blood and urine which is an intermediate in the metabolic breakdown... Lire la suite » ;

Xanthine

noun

Any of a group of alkaloids that include caffeine, theophylline, and theobromine as well as the... Lire la suite » ;