Crossword-Solution: DIOPTRE
Dictionary
| Word | Word Type | Definition |
|---|---|---|
| Dioptre | n. | A unit employed by oculists in numbering glasses according to the metric system; a refractive power equal to that of a glass whose principal focal distance is one meter. |
Anagrams
| Word | Anagrams | |
|---|---|---|
| DIOPTRE | anagram | DIOPTER, PERIDOT, PERIODT, PTEROID |
We have 3 clues for the answer “DIOPTRE”
| Clue | Answers |
|---|---|
| Unit of refractive power | 1 answer |
| unit for measuring the refractive power of a lens | 1 answer |
| LENS, power unit of a | 2 answers |
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Poet’s word, with inverted comma, for the end of the day
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E
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Hint 1 meaning
The old plural of Eye.
Hint 2 anagram
ENE
Hint 3 another clue
AND STILL ___
22 +1
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Sentences with DIOPTRE (2)
Even in full visual acuteness it is not unusual that with weak convex glasses (of less than a dioptre) binocular vision is just as clear as with the naked eyes, while in monocular investigation convex glasses cause a slight indistinctness of vision.
Enough, we must not over-rate the value of the objective determination of the error of refraction, and I would estimate the limit of error at half a dioptre at least.