That is able to diffract (cause diffraction)

Relating to, or caused by diffraction

(physics) a surface having many closely spaced lines or slits; used to produce optical spectra by mutual interference

(physics) the pattern of lines or spots produced by diffraction; especially the two-dimensional pattern produced by X-ray diffraction that may be used to determine the structure of a crystal or of a crystalline compound.

(physics) The interference process which occurs when neutrons are scattered by the atoms within solids, liquids and gases.

plural of diffraction pattern

plural of diffraction grating

(astronomy, telescopy) The minimum angular separation of two sources that can be distinguished by a telescope (depending on the wavelength of the light being observed and the diameter of the telescope).

plural of diffraction limit

(physics) The scattering of X-rays by the regular lattice of atoms or molecules in a crystal. / (physics) The diffraction pattern so obtained.