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as•tro•bleme



Pronunciation: (as'tru-blēm"), [key]
n. Geol.
an erosional scar on the earth's surface, produced by the impact of a cosmic body, as a meteorite or asteroid. Cf. crater (def. 2).

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

astrobiologyastrochemistry
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