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Airy disc

[ air-ee ]

noun

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

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Word History and Origins

Origin of Airy disc1

Named after Sir George Biddel Airy (1801–92)

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gallimaufry

[gal-uh-maw-free ]

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