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

tephra

/ tĕf′rə /

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.

Word History and Origins

Origin of tephra¹

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

Word History and Origins

Origin of tephra¹

C20: Greek, literally: ashes