Definition of metallic lustre in US English:

metallic lustre

(US metallic luster)

noun

  • 1The sheen characteristic of (especially polished) metals and certain opaque minerals.

  • 2A similarly shiny or iridescent appearance in certain organisms, especially insects.

  • 3Ceramics a reflective or iridescent decorative finish produced by applying a thin film of metal to the surface of the glaze.

Origin

Late 18th century; earliest use found in Encyclopaedia Britannica.