SpellRight › Spelling
Rarediopter
The correct spelling is diopter.
How to pronounce diopter
noun
Say it like: Dio-pte-r
The correct spelling is diopter. A unit of measure of the power of a lens or mirror, equal to the reciprocal of its focal length in meters. Myopia is diagnosed and measured in diopters.
Usage Examples
No usage examples in context are available for this word.
Definition
noun
- 1.A unit of measure of the power of a lens or mirror, equal to the reciprocal of its focal length in meters. Myopia is diagnosed and measured in diopters.
- 2.The dioptre adjustment mechanism of a pair of binoculars.
- 3.Any lens system, such as a telescope.
- 4.A theodolite or similar surveyor’s angle measuring device.
- 5.An alidade.
Similar words
Words related in meaning — check their spelling too.