s 1 i 1 a 1 l 1
4 letters · 4 points in Scrabble
Meaning
noun the granitelike rocks that form the outermost layer of the earth's crust; rich in silicon and aluminum
originCoined by Eduard Suess in 1909, in Das Antlitz der Erde, as a blend of translingual Si (silicon) + Al (aluminum).
Etymology from Wiktionary, CC BY-SA 3.0