411 REFERENCE · Wiktionary
Dioptrie
Reference material by Wiktionary contributors. This retains its source identity and is not 411 news reporting.
dioptrie dioptrię
German
Pronunciation
de De-Dioptrie.ogg <<Germany>> (<<Berlin>>)
Noun
f
diopter
Usage notes
Due to the rarity of the singular form, and by influence of the suffix de -in n-s, the plural de Dioptrien may be reanalyzed as a mass noun in the vernacular. This usage is nonstandard.
Declension
f
Further reading