Definition of radiolite in English:

radiolite

noun

rare
  • 1Palaeontology. A rudist bivalve mollusc of the Cretaceous genus Radiolites or family Radiolitidae.

  • 2Mineralogy. A variety of natrolite occurring in masses with a radiated structure. Chiefly historical.

Origin

Mid 19th century. From radius + -o- + -lite. In sense 1 after either French radiolite or scientific Latin Radiolites, genus name.

Pronunciation

radiolite

/ˈreɪdɪə(ʊ)lʌɪt/