dioptrique
French, noun/djɔp.tʁik/
dioptrique is spelled D-I-O-P-T-R-I-Q-U-E (10 letters) and appears about once in every 15 million words in written French, the 125,137th most frequent French word form (wordfreq, 2021 data). Dioptrique is a French feminine noun meaning “dioptrics” (English Wiktionary, September 2026). The French Wiktionary (Wiktionnaire) defines it as “Partie de l’optique, qui détermine les directions que prennent les rayons lumineux, après avoir subi une ou…”.
What does dioptrique mean in English?
adjective
- 1
dioptric
noun
- 1
femininedioptrics
Source: English Wiktionary, French section, dump of September 2, 2026 (CC BY-SA 4.0).
How French dictionaries define it
adjective: 1. Relatif à l’optique, la vue.
noun: 1. Partie de l’optique, qui détermine les directions que prennent les rayons lumineux, après avoir subi une ou plusieurs réfractions.
The definition in the French Wiktionary (Wiktionnaire), in French.
Source: French Wiktionary (Wiktionnaire), dump of September 1, 2026 (CC BY-SA 4.0), through kaikki.org.
Forms of dioptrique
- dioptriques plural
Source: English Wiktionary and French Wiktionary (Wiktionnaire) (dumps of September 2, 2026 and September 1, 2026).
How do you pronounce dioptrique?
- /djɔp.tʁik/
- \djɔp.tʁik\
Sources: English Wiktionary, French Wiktionary (Wiktionnaire) (dumps of September 2, 2026 and September 1, 2026); recordings from Wikimedia Commons.
How common is dioptrique in French?
dioptrique appears about once in every 15 million words in written French.
Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).