- a white, crystalline, slightly water-soluble glucoside, C15H16O9, obtained from the bark of the common horse chestnut and used chiefly in skin preparations as a protective against sunburn.
Origin of esculin
< Italian esculina < New Latin Aescul(us) (first part of genus name of species that produces it) + Italian -ina -in2
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for esculin
Esculin will not luminesce with peroxidase and H2O2, but pyrogallol or gallic acid will.The Nature of Animal Light
E. Newton Harvey