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sial
[ sahy-al ]
noun
, Geology.
- the assemblage of rocks, rich in silica and alumina, that comprise the continental portions of the upper layer of the earth's crust.
sial
/ ˈsaɪəl; saɪˈælɪk /
noun
- the silicon-rich and aluminium-rich rocks of the earth's continental upper crust, the most abundant individual rock being granite
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Derived Forms
- sialic, adjective
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Other Words From
- si·alic adjective
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Word History and Origins
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Word History and Origins
Origin of sial1
C20: si ( licon ) + al ( uminium )
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Example Sentences
He loved controver- sial reporting, and this had the makings of .
From Project Gutenberg
Why not usia and homo�sial, as well as hypostasis, hypostatic, homogeneous, heterogeneous, and the like;—or as Baptism, Eucharist, Liturgy, Epiphany and the rest?
From Project Gutenberg
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