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sima
1[ sahy-muh ]
noun
, Geology.
- an assemblage of rocks, rich in silica and magnesium, that constitutes the lower layer of the earth's crust and is found beneath the ocean floors and the sial of continents.
sima
2[ sahy-muh ]
noun
, Architecture.
- the uppermost member of a full classical order, usually a cyma recta, representing a roof gutter; cymatium.
sima
/ saɪˈmætɪk; ˈsaɪmə /
noun
- the silicon-rich and magnesium-rich rocks of the earth's oceanic crust, the most abundant individual rock being basalt
- the earth's continental lower crust, probably comprised of gabbro rather than basalt
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Derived Forms
- simatic, adjective
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Other Words From
- si·mat·ic [sahy-, mat, -ik], adjective
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Word History and Origins
Origin of sima1
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Word History and Origins
Origin of sima1
C20: from si ( lica ) + ma ( gnesia )
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