"Catadioptrics" is a word in ENGLISH

catadioptrics ENGLISH
Definition:

The science which treats of catadioptric phenomena,
or of the used of catadioptric instruments.

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All are lunatics, but he who can analyze his delusion is called a philosopher.

Ambrose Bierce, The Collected Writings Of Ambrose Bierce

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Laugh your heart out.

When a teacher closes his eyes, why should it remind him of an empty classroom?Because there are no pupils to see!

catadioptric ENGLISH

Alt. of Catadioptrical

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Pertaining to, produced by, or involving, both the reflection and refraction of light; as, a catadioptric light.

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