An Etymological Dictionary of Astronomy and Astrophysics

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point spread function (PSF)

کریای ِ گسترش ِ نقطه، ~ ~ پنده

karyâ-ye gostareš-e noqté, ~ ~ pandé

Fr.: fonction d'étalement du point

The two-dimensional intensity distribution about the image of a point source.

See also: → point; → spread;
→ function.