microtephra

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noun

Microscopic deposits of tephra.

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Meanings

nounmicrotephra (uncountable)
  1. uncountablebiologyMicroscopic deposits of tephra.

    This microtephra may be ejected into the upper atmosphere and travel for many thousands of miles […].

    2011, Chris Stringer, The Origin of Our Species, Penguin, published 2012, page 45

Origin

From micro- + tephra.

Full word history & related roots →
Cite this entry
APA

microtephra. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/microtephra

MLA

“microtephra.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/microtephra. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “microtephra,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/microtephra.

Source: microtephra on Wiktionary, CC BY-SA 4.0.