Definitions

1. adjective

containing or characterized by a hydroxyl group (—OH)

“The hydroxy group in the compound is responsible for its acidic properties.”

2. noun

a functional group in organic chemistry consisting of a hydroxyl group (—OH)

“The molecule contains a hydroxy group that can participate in hydrogen bonding.”

3. suffix

forming a compound name indicating the presence of a hydroxyl group

“hydroxyapatite is a form of calcium phosphate with a hydroxyl group.”