Associations to the word «Dioptre»

Wiktionary

DIOPTRE, noun. Alternative spelling of diopter

Dictionary definition

DIOPTRE, noun. A unit of measurement of the refractive power of a lens which is equal to the reciprocal of the focal length measured in meters; used by oculists.

Wise words

Don't use words too big for the subject. Don't say "infinitely" when you mean "very"; otherwise you'll have no word left when you want to talk about something really infinite.
C. S. Lewis