[ ef-sis-tuhm ]
/ ˈɛfˌsɪs təm /
noun Optics, Photography.
a system that indicates the relative aperture of a camera lens based on the f-number.
FOR LEXICAL ALIMENTATION, TAKE THIS WORD OF THE DAY QUIZ!
Nourish your vocabulary with a refresher on the words from the week of September 14–20, 2020!
Question 1 of 7
What does “blatherskite” mean?
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020