1. A metallic oxide combined with water; a metallic hydrate.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• hydroxyde,
• hydrozide,
• hygroxide,
• hydrolixe,
• hydrolise,
• hydromise,
• gydroxide,
• bydroxide,
• nydroxide,
• hydroxiede,
• hydroxie,
• hydroxid,
• hydroxied,
• hydroxile,
• hydroxi,
• hydroxyd,
• hydrooidea,
• Hydroidee,
• hydrophied,
• hyperoxied

• hydroxyzine,
• hydrogenate,
• hydrosphere,
• hydrocele,
• hydrocolloid,
• hydroxyl ion,
• Hydroxy Acid,
• hydrous,
• hydrogel,
• hydroxy,
• hydrochoerus,
• hydroxyl,
• hydrogen.

The adjective form of the word "hydroxide" is "hydroxide".

The plural of the "hydroxide" can be the "hydroxides".

The singular of the "hydroxide" can be the "hydroxide".