Definition of tephra
: solid material ejected into the air during a volcanic eruption; especially : 2ash 2b
Recent Examples of tephra from the Web
That volcano last erupted in 1985 producing lava flows with minor tephra.
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Origin and Etymology of tephra
New Latin, from Greek, ashes; akin to Sanskrit dahati it burns — more at foment
First Known Use: circa 1944
Learn More about tephra
Britannica.com: Encyclopedia article about tephra
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