dioptria
Portuguese, noun/d͡ʒi.o.piˈtɾi.ɐ/
dioptria is spelled D-I-O-P-T-R-I-A (8 letters) and appears about once in every 49 million words in written Portuguese, the 197,229th most frequent Portuguese word form (wordfreq, 2021 data). Dioptria is a Portuguese feminine noun meaning “diopter (unit of measure)” (English Wiktionary, September 2026).
What does dioptria mean in English?
noun
- 1
femininediopter (unit of measure)
Source: English Wiktionary, Portuguese section, dump of September 2, 2026 (CC BY-SA 4.0).
Forms of dioptria
- dioptrias plural
Source: English Wiktionary and Portuguese Wiktionary (Wikcionário) (dumps of September 2, 2026 and September 1, 2026).
How do you pronounce dioptria?
- Brazil /d͡ʒi.o.piˈtɾi.ɐ/
- Brazil /d͡ʒjo.piˈtɾi.ɐ/
- Brazil /d͡ʒi.opˈtɾi.ɐ/
Sources: English Wiktionary, Portuguese Wiktionary (Wikcionário) (dumps of September 2, 2026 and September 1, 2026); recordings from Wikimedia Commons.
English words that translate to dioptria
Source: the translation tables of the English Wiktionary, dump of September 2, 2026.
How common is dioptria in Portuguese?
dioptria appears about once in every 49 million words in written Portuguese.
Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).