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)

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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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Dictionary Entries near Airy disk

airworthy

air wrench

airy

Airy disk

airy-fairy

ais

Ais

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The first known use of Airy disk was in 1923

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