• hydroceole,
• hydrocel,
• hydroceel,
• hydrocele,
• gydrogel,
• bydrogel,
• nydrogel,
• jydrogel,
• hydrpgel,
• hydrogdel,
• hydorgel,
• hydrogle,
• hydrogell,
• hidrogel,
• hydrojell,
• hudromel,
• hydropes,
• hydropcal,
• Hydrocalt,
• Medregel

• hydrography,
• hydrogenate,
• hydrous,
• hydrocele,
• hydroxy,
• hydrogen,
• Hydrozoa,
• hydroxide,
• hydroxyl.

The adjective form of the word "hydrogel" is "hydrogel-based".

The plural of the "hydrogel" can be the "hydrogels".

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