Breadcrumb Home > Thesaurus > D Synonyms of diopter Find synonyms for: Noun 1. diopter, dioptre, unit of measurement, unit usage: 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 WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of diopter (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Chinese New Year History, Meaning, and Celebrations Current Events This Week: February 2024 Valentine's Day Valentine's Day History Mardi Gras 30 "Charlie and the Chocolate Factory" Quotes ✖ Related Content Daily Word Quiz: deracinate Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language