tephritic

Variant of tephrite

noun

an extrusive igneous rock resembling basalt and consisting essentially of plagioclase, nepheline, etc.

Origin: < Gr tephra, ashes < IE base *dhegwh-, to burn (> fever) + -ite

Related Forms:

Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.
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