# hydroxy

/ˌhaɪˈdɹɔksi/ (US) · /hˈaɪdɹɒksi/ (UK) · CEFR C1 · Adjective

Source: https://englishreference.com/word/hydroxy
Updated: 2026-05-30

## Definition

containing a hydroxyl group, which is a chemical part made of one oxygen and one hydrogen atom. You usually see this in names of chemicals or in science.

For teachers: containing a hydroxyl group (-OH) as a functional group. Typically used in chemical nomenclature to describe organic compounds or inorganic salts.

## Examples

- The scientist tested the hydroxy compound for its properties.
- In organic chemistry, a hydroxy group is essential for forming alcohols and other functional derivatives.
- The presence of a hydroxy group significantly increases the polarity of a molecule, often enhancing its solubility in water and its ability to form hydrogen bonds with other substances.

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