An Etymological Dictionary of Astronomy and Astrophysics

The condition that two or more functions are indistinguishable because they have the same values at a finite set of points. Such functions are said to be aliases of each others. The aliasing problem often occurs in undersampled discrete Fourier transform.

Etymology (EN): Aliasing, from → alias + → -ing.

Etymology (PE): Anyâyi, from anyâ, → alias, + noun forming suffix -i.