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dioptric

/daɪˈɒptɹɪk/adjective, noun

dioptric is spelled D-I-O-P-T-R-I-C: 8 letters. It appears about once in every 52 million words in written English, the 225,584th most frequent word form (wordfreq, 2021 data). As an adjective, dioptric means “Acting as a medium for sight; making use of refraction (of lenses, etc.)” (English Wiktionary, September 2026).

How many letters and syllables are in dioptric?

Letters8: D-I-O-P-T-R-I-C
In writingabout once in every 52 million words; the 225,584th most frequent word form
Wrong spellings searchednone measured in search

Sources: letters and syllables from the English Wiktionary's hyphenation or pronunciation; written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).

How common is dioptric?

Dioptric appears about once in every 52 million words in written English, the 225,584th most frequent word form in the list.

Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).

How do you pronounce dioptric?

  • /daɪˈɒptɹɪk/

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).

Forms of dioptric

  • more dioptric comparative
  • most dioptric superlative
  • dioptrics plural

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).

What does dioptric mean?

The meanings the English Wiktionary records, quoted as written there (source below).

adjective

  1. 1

    Acting as a medium for sight; making use of refraction (of lenses, etc.).

  2. 2

    obsoletePertaining to a diopter.

  3. 3

    obsoleteCapable of being seen through.

noun

  1. 1

    The branch of optics concerned with refraction.

  2. 2

    A dioptric telescope.

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).

Where does dioptric come from?

From Greek διοπτρικός. Compare diopter.

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).

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