parfocal

[ pahr-foh-kuhl ]
/ pɑrˈfoʊ kəl /

adjective Optics.

of or relating to different eyepieces (of telescopes or microscopes) that all focus their images in the same plane, so that they can be interchanged without readjusting the instrument.

QUIZZES

QUIZ YOURSELF ON THESE WORDS FROM BROWN GIRL DREAMING!

Visualize yourself passing this quiz on words from Jacqueline Woodson’s exquisite verse novel “Brown Girl Dreaming,” and then take the quiz to prove you can do it! (Because you can.)
Question 1 of 10
What does “barren” mean?

Origin of parfocal

First recorded in 1885–90; par1 + focal
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020