hydroxy-

Century Dictionary and Cyclopedia

1. An initial member in many compound terms in chemistry, often written as if a separate word, hydroxy, indicating that the substance designated contains the hydroxyl radical or group, HO. The term oxy- is often used, less correctly, with the same meaning.

Wiktionary

1. chemistry having, or derived from a hydroxyl radical

GNU Webster's 1913

1. (Chem.) A combining form, also used adjectively, indicating hydroxyl as an ingredient.

WordNet 3.0

1. adj. being or containing a hydroxyl group