noun🔗ShareHydroxylgruppeA univalent radical or functional group (–OH) in organic chemistry; present in alcohols, phenols, carboxylic acids and certain other classes of compounds."The scientist added a hydroxyl group to the molecule to make it a type of alcohol. "Der Wissenschaftler fügte dem Molekül eine Hydroxylgruppe hinzu, um es zu einer Art Alkohol zu machen.chemistrybiochemistrycompoundsubstanceChat with AIVocabulary GamePractice Reading