adjective Chemistry.
containing two or more hydroxyl groups.

1890–95; poly- + hydroxy

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World English Dictionary
polyhydroxy (ˌpɒlɪhaɪˈdrɒksɪ)
Also: polyhydric (of a chemical compound) containing two or more hydroxyl groups per molecule

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Example sentences
These polyhydroxy triglycerides exhibit unique industrially desirable emulsoid properties in water.
The carbohydrates are polyhydroxy aldehydes and ketones.
Synthesis and characterization of corn oil polyhydroxy fatty acids designed as additive agent for many applications.
Synthesis and characteristics of polyhydroxy triglycerides from milkweed oil.
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