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astrobleme

[as-truh-bleem] /ˈæs trəˌblim/
noun, Geology
1.
an erosional scar on the earth's surface, produced by the impact of a cosmic body, as a meteorite or asteroid.
Compare crater (def 2).
Origin of astrobleme
1965-1970
1965-70; < astro- + -bleme (< Greek blêma shot, wound)
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Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for astrobleme

astrobleme

/ˈæstrəˌbliːm/
noun
1.
a mark on the earth's surface, usually circular, formed by a large ancient meteorite impact
Word Origin
C20: from astro- + Greek blēma shot, wound
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
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Word Origin and History for astrobleme
n.

1961, from astro- + Greek bleme "throw of a missile; wound caused by a missile," from ballein "to throw" (see ballistics).

Online Etymology Dictionary, © 2010 Douglas Harper
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