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tephra

[ tef-ruh ]

noun

, (used with a plural verb)
  1. clastic volcanic material, as scoria, dust, etc., ejected during an eruption.


tephra

/ ˈtɛfrə /

noun

  1. solid matter ejected during a volcanic eruption
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012


tephra

/ tĕf /

  1. Solid matter, such as ash, dust, and cinders, that is ejected into the air by an erupting volcano. Tephra is a general term for all pyroclastic materials ejected from a volcano.


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Word History and Origins

Origin of tephra1

First recorded in 1960–65, tephra is from the Greek word téphra (singular) ashes
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Word History and Origins

Origin of tephra1

C20: Greek, literally: ashes

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Tepexpán mantephrite