• Webster's Revised Unabridged Dictionary
    • n Phloroglucin (Chem) A sweet white crystalline substance, metameric with pyrogallol, and obtained by the decomposition of phloretin, and from certain gums, as catechu, kino, etc. It belongs to the class of phenols. [Called also phloroglucinol
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Century Dictionary and Cyclopedia
    • n phloroglucin A substance widely distributed in the vegetable kingdom, when pure crystallizing in small yellow crystals with the composition C6H3(OH)3; a trivalent phenol. It is used in microscopy as one of the best reagents for testing lignified cell-walls.
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Webster's Revised Unabridged Dictionary
Phlor,etin + Gr. sweet