polyhydricadj.
/ˌpɒlɪˈhʌɪdrɪk/, U.S. /ˌpɑliˈhaɪdrɪk/ Chemistry.
Of a molecule: containing more than one hydroxyl group. Of a substance: consisting of such molecules.
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polyhydric1876
1876 H. E. Armstrong Introd. Study Org. Chem. viii. 215 The polyhydric primary alcohols, which are n-hydric, are formulated as containing the group (CH2.OH) n times.
1920 T. H. Pope tr. E. Molinari Treat. Inorg. Chem. (ed. 2) 274 The polyacid bases, also called polyhydric bases, condense to form polybases or polyhydroxides.
1946 Nature 3 Aug. 155/2 Manganese dioxide is reduced with great ease to form divalent manganese ion by..polyhydric phenols such as quinol, catechol, gallic acid, etc.
1951 I. L. Finar Org. Chem. I. xi. 208 The polyhydric alcohols chemically resemble glycerol in many ways.
2000 New Phytologist 148 28/2 The green algae release a polyhydric sugar alcohol (polyol) to the mycobiont.
This entry has been updated (OED Third Edition, September 2006; most recently modified version published online March 2022).
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