Origin of tephrite; from Classical Greek tephra, ashes ; from Indo-European base an unverified form dhegwh-, to burn (from source fever) + -ite
(countable and uncountable, plural tephrites)
- (geology) An igneous rock consisting essentially of plagioclase and either leucite or nephelite, or both.
Part or all of this entry has been imported from the 1913 edition of Websterâ€™s Dictionary, which is now free of copyright and hence in the public domain. The imported definitions may be significantly out of date, and any more recent senses may be completely missing.