hydroxybenzoic acid

noun
hy·​droxy·​ben·​zo·​ic acid | \ -ben-ˌzō-ik- How to pronounce hydroxybenzoic acid (audio) \

Medical Definition of hydroxybenzoic acid

: any of three crystalline derivatives C7H6O3 of benzoic acid that contain one hydroxyl group per molecule: as
a : the colorless para-substituted acid used in making several of its esters that are effective preservatives

called also parahydroxybenzoic acid

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