curvature of field
a monochromatic aberration of a lens or other optical system in which the focal surface is curved, the refracted image of an object oriented perpendicular to the axis of the lens lying on a curved surface rather than in a plane perpendicular to the axis.
Misinformation, Loki, And Other Trending Words On Dictionary.comFrom the Dictionary.com Word of the Year to NASA's years-long mission to land a spacecraft on Mars, the words that trended in searches this week are out of this world (if we do say so ourselves). Ready? Set? Learn!
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019