hydroxy acid hyd·ro·xya·cid uncommon noun 1. any acid that has hydroxyl groups in addition to the hydroxyl group in the acid itself Synonymshydroxy acid Related words Broader terms acid Narrower terms hydroxybenzoic acidjuniperic acidsalicylic acidtartaric acid WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.
