RUPERT'S DROP


Meaning of RUPERT'S DROP in English

A kind of glass drop with a long tail, made by dropping melted glass into water. It is remarkable for bursting into fragments when the surface is scratched or the tail broken; -- so called from Prince Rupert, nephew of Charles I., by whom they were first brought to England. Called also Rupert's ball, and glass tear.

Webster's Revised Unabridged English Dictionary.      Пересмотренный полный словарь английского языка Webster.