Link Centre Dictionary

sial

uncommon

noun

1.

the granite-like rocks that form the outermost layer of the earth''s crust; rich in silicon and aluminum

Origin

Coined by Eduard Suess in 1909, in Das Antlitz der Erde, as a blend of translingual Si (silicon) + Al (aluminum).

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WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.