Airy disk

noun

Definition of Airy disk

: the bright central spot in the system of diffraction rings formed by an optical system with light from a point source (as a star)

First Known Use of Airy disk

1923, in the meaning defined above

History and Etymology for Airy disk

after George Biddell Airy †1892 English mathematician and astronomer

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The first known use of Airy disk was in 1923

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Dictionary Entries Near Airy disk

airy

Airy disk

airy-fairy

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Cite this Entry

“Airy disk.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Airy%20disk. Accessed 25 Sep. 2022.

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