Lower layer of the earth's crust Crossword Clue
4 letters · New York Times · Sunday, August 21, 2011 · 54-Down
Appeared in 2 New York Times Crosswords between June 1995 and August 2011.
Exact puzzle match · New York Times · August 21, 2011 · 54-Down · 4 letters
SIMA0 of 4 letters revealed
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What does this clue mean?
rock that form the continuous lower layer of the earth's crust; rich in silicon and magnesium
noun
WordNet® (Princeton University)
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