单词	beta hydroxy acid
释义	beta hydroxy acid noun variants or less commonly beta-hydroxy acid ˌbā-tə-hī-ˈdräk-sē-  plural beta hydroxy acids also beta-hydroxy acids : any of various carboxylic acids with a hydroxyl group attached at the beta position especially : salicylic acid AHAs have recently been joined by beta hydroxy acids (BHAs), used by the skin-care industry to refer to salicylic acid, which dermatologists have long used as an astringent, antiseptic, and skin-slougher. Consumer Reports —abbreviation BHA compare alpha hydroxy acid Word History First Known Use 1895, in the meaning defined above Medical Definition beta hydroxy acid noun variants also beta-hydroxy acid or beta hydroxy or beta-hydroxy : any of various carboxylic acids with a hydroxyl group attached at the beta position especially : salicylic acid A better fix is to exfoliate with a high-concentration beta hydroxy acid product designed for warts. Paula Begoun, The Houston Chronicle —abbreviation BHA compare alpha hydroxy acid
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