| Pronunciation: | | s'eemu
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 WordNet Dictionary |
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| | Definition: | |
[n] rock that form the continuous lower layer of the earth's crust; rich in silicon and magnesium |
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SIMA is a 4 letter word that starts with S. |
| | See Also: | | crust, Earth's crust, rock, stone |
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| Webster's 1913 Dictionary |
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| | Definition: | | \Si"ma\, n. (Arch.)
A cyma.
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