Definitions
Etymologies
- From the Ancient Greek τέφρα (tephra, "ash"). (Wiktionary)
- Greek tephrā, ash; see dhegwh- in Indo-European roots. (American Heritage® Dictionary of the English Language, Fourth Edition)
Examples
“The volcano ejected a minimum of 1.1 km3 of uncompacted tephra, which is equivalent to 0. 20-0.25 km3 of magma or solid rock.”
“Fortunately, a detailed 7,000 year record is preserved in peat bogs and lake beds in the form of microscopic layers of volcanic material, including ash, called tephra.”
“In the air, after it’s blown out of the volcano, it’s pyroclast—broken rock—but on the ground it’s called tephra.”
“The type of dust that attracted the engineers to Hawaii is called "tephra," a fine, powder-like material that is ejected during a volcanic eruption.”
“As catastrophic as that would be, it was insignificant compared to the loss of life that was predicted as a result of the volcanic winter caused by the trillions of cubic meters of tephra ejected into the atmosphere.”
365 tomorrows » 2009 » March : A New Free Flash Fiction SciFi Story Every Day
“Fluorine adhering to tephra of the 1970 Hekla eruption: Journal of Volcanology and Geothermal Research, v. 8, p. 251-266.”
Volcanic Ash -- Effects on Water Supply and Mitigation Strategies
“After tephra falls during the 1947 eruption of Hekla, fluorine contents of stream waters in areas that received between 1 to 10 cm of ash were found to be between 1.0 and 4.5 ppm for a short duration (Thorarinsson, 1979), elevated from the normal background level of 0.2 ppm.”
Volcanic Ash -- Effects on Water Supply and Mitigation Strategies
“The evidence from the stratified finds of Theran tephra and pumice at a number of Aegean sites supports a Late Minoan IA date.”
Picture 168 « Field Notes 2009: Weeks 3 & 4 « Interactive Dig Crete – Zominthos Project
“Note the increased thickness about 300 km downwind; this unusual increase in tephra thickness is thought to have resulted from the sticking together of individual grains due to moisture in the eruption cloud (Sarna-Wojcicki and others, 1981).”
“The oldest levels at Kostenki underlie a volcanic ash horizon identified as the Campanian Ignimbrite Y5 tephra that is dated elsewhere to about 40,000 years ago.”
Lists
These user-created lists contain the word ‘tephra’.
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phrontistery-t
from phrontistery.info
tabacosis, tabanid, tabaret, tabati?re, tabby, tabefaction, tabellary, tabellion, tabernacle, tabernacular, tabescent, tabific and 930 more...
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250 Spelling Words
A selected sampling of words for intermediate and advanced spellers.
orecchiette, rhabdomancy, guayabera, orthoepy, opisthenar, maguey, proem, ciabatta, cioppino, banns, concinnity, asthenia and 237 more...
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Interesting
iridescent, luminescent, gossamer, blithe, illusory, halo, cygnet, covet, bloody, iris, pruinose, limerence and 15 more...
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Volcanic Action
volcancellation, mofette, pozzuolana, puy, rapillo, solfatara, canagua, delabrated, efflagration, maccaluba, Plinian, salinelle and 46 more...
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colleen's words ii
sibilant, sundry, spindle, distaff, device, mortar, pestle, scythe, flail, thresh, frown, elementary and 495 more...
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Random
These are just some random words that I might find a list for someday.
troglodytism, chinkle, vasculum, sabz, cucullus, tricornigerous, cuboctahedron, eruca, gamp, pilum, taha, angelhood and 244 more...
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5-0
Hecko, words! I’m so happy I’ve found you. I want to keep you all and never want to lose you again. I hope you like it here.
amscray, thistledown, tine, tinsel, pungent, snarl, wail, lanky, viscid, dawdle, luminous, stow and 2719 more...
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Marginilia
intertextuality, queer, serendipity, eerie, semiotics, schadenfreude, calliope, logophile, marginalia, reductio ad absurdum, dabble, minutia and 141 more...
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T-words
tantony, tath, timmynoggy, thole, tortfeaser, twiss, tyg, trichechine, tanquam, tattogey, thebaine, thob and 36 more...
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Geologic Delights
hoodoo, tafoni, scree slope, porphyroclast, phenocryst, porphyroblast, fiamme, tephra, pele's hair, pingo, glacial flour, dropstone and 13 more...
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the geologist
I like rocks. And all the names attributed to rocks and other geologic formations. Also see the earth list.
gneiss, breccia, granite, sedimentary, metamorphic, shale, igneous, geode, gabbro, lapillus, sandstone, limestone and 13 more...
Tweets
Looking for tweets for tephra.

colleen Geol.
Dust and rock fragments that have been ejected into the air by a volcanic eruption. (OED) Mar 11, 2007