• Webster's Revised Unabridged Dictionary
    • n Radiolite (Paleon) A hippurite.
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Century Dictionary and Cyclopedia
    • n radiolite A member of the genus Radiolites.
    • n radiolite A variety of natrolite, occurring in radiated forms in the zircon-syenite of southern Norway.
    • n radiolite In petrography, the name given by Boričky (1882) to spherulites with radial arrangement of component crystals.
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Webster's Revised Unabridged Dictionary
L. radius, ray + -lite,: cf. F. radiolithe,


In literature:

It was to answer this emergency that the Ingersoll Company turned out their Radiolite Watch.
"Christopher and the Clockmakers" by Sara Ware Bassett
He was wearing a wrist watch with a radiolite dial.
"Astounding Stories of Super-Science April 1930" by Various