An Etymological Dictionary of Astronomy and Astrophysics

The quality of an → optical system that is capable of producing images with angular resolution as small as the theoretical limit of the → Airy disk.

Etymology (EN): → diffraction; limited, adj. of
→ limit.

Etymology (PE): Karânmand “bounded, limited,” from karân→ boundary + -mand possession suffix; parâš→ diffraction.