Definition of powder pattern in US English:

powder pattern

noun

  • 1Crystallography. An X-ray diffraction pattern produced by the Debye–Scherrer method.

  • 2Physics. A pattern formed by the settling of a colloidal magnetic powder on a magnetized solid, which is indicative of the magnetic domain structure of the solid.

Origin

1920s. From powder + pattern.

Pronunciation

powder pattern

/ˈpaʊdə ˌpatn/