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(of an alcohol) containing two hydroxyl groups.
- ‘Polyurethanes are created from dihydric alcohols and diisocyanate monomers.’
- ‘Subsequently, the polyphenol was further separated into dihydric phenols and monohydric phenol.’
- ‘This early work was based on toluene diisocyanate reacted with dihydric alcohols.’
- ‘Aliphatic dihydric alcohols are known as glycols.’
- ‘Of the four dihydric alcohols, ethylene glycol was superior to the other three alcohols in the smoothness and color of the deposit and the cathodic current efficiency.’
Late 19th century: from di- ‘two’+ hydrogen + -ic.
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The definitions of ‘buddy’ and ‘bro’ in the OED have recently been revised. We explore their history and increase in popularity.