aspherical surface

noun

photog a lens or mirror surface that does not form part of a sphere and is used to reduce aberrations

QUIZZES

HEED THE VOX POPULI, AND TAKE THIS WORD OF THE DAY QUIZ!

Test your memory on these verbal firecrackers from the week of June 29 to July 5!
Question 1 of 7
anchorite
a granular metamorphic rock.
a person who has retired to a solitary place for a life of religious seclusion.
a hobble or fetter for a horse or other animal.
TAKE THE QUIZ TO FIND OUT

Words nearby aspherical surface

asphalt rock, asphaltene, asphaltite, asphaltum, aspherical, aspherical surface, asphodel, asphyxia, asphyxia livida, asphyxia neonatorum, asphyxiant
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012