Word.ws English Dictionary

dioptrical

/daɪˈɒptɹɪkəl/

dioptrical is the alternative form of dioptric.

Meaning of dioptric

Adjective

dioptric (comparative more dioptric, superlative most dioptric)

  1. Acting as a medium for sight; making use of refraction (of lenses, etc.).
  2. (obsolete) Pertaining to a diopter.
    • [W]ould the new Narcissus—without any dioptric or sciatherical computing—grasp the alternating skirmish of light and shadow.2014, Umberto Eco, Island of the Day Before, London: Vintage Books, page 363
  3. (obsolete) Capable of being seen through.

See all 5 meanings of dioptric

Forms of dioptrical

comparativemore dioptrical
superlativemost dioptrical

Questions about dioptrical

What is dioptrical the alternative form of?
Dioptrical is the alternative form of dioptric.
How do you pronounce dioptrical?
Dioptrical is pronounced /daɪˈɒptɹɪkəl/.

Words near dioptrical in the dictionary

  1. dioptral
  2. dioptrate
  3. dioptre
  4. dioptres
  5. dioptric
  6. dioptrical
  7. dioptrically
  8. dioptrics
  9. dioptries
  10. dioptrometry
  11. dioptry

Source and license

Adapted from Wiktionary: dioptrical (page history and authors); dioptric (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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Cite this entry: “dioptrical.” Word.ws, https://word.ws/dioptrical. Based on Wiktionary, CC BY-SA 4.0.