Airy disc

[ air-ee ]
/ ˈɛər i /

noun Optics.

the bright central part of the diffraction pattern of light from a point source that is diffracted by a circular aperture.

QUIZZES

GEE WHILLIKERS! WAIT TILL YOU SEE THIS WORD OF THE DAY QUIZ!

Do you remember all the words from last week, September 21–27, 2020? Then this quiz should be butyraceous.
Question 1 of 7
What does “yare” mean?

Origin of Airy disc

named after Sir George Biddel Airy (1801–92)

Words nearby Airy disc

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020