1. That part of optics which treats of the refraction of light, or its transmission from one medium into another, differing in kind.

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

• Dioptris,
• sioptrics,
• xioptrics,
• cioptrics,
• fioptrics,
• rioptrics,
• eioptrics,
• duoptrics,
• djoptrics,
• dkoptrics,
• dooptrics,
• d9optrics,
• d8optrics,
• diiptrics,
• dikptrics,
• dilptrics,
• dipptrics,
• di0ptrics,
• dioptics,
• Dyoptrics

The adjective form of the word "dioptrics" is "dioptric".

The plural of the "Dioptrics" can be the "dioptrics".

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