Definition of tricresyl phosphate
: an oily flame-resistant mixture of isomeric inorganic esters (CH3C6H4)3PO4 made from cresols or cresylic acid and usually phosphorus oxychloride and used chiefly as a plasticizer and solvent, as a fire retardant, and as a lead scavenger in gasoline : tritolyl phosphate —not used systematically
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