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English word
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WORDNET DICTIONARY
CIDE DICTIONARY
OXFORD DICTIONARY
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WORDNET DICTIONARY
Noun silicon has 1 sense
- silicon(n = noun.substance) atomic number 14, si - a tetravalent nonmetallic element; next to oxygen it is the most abundant element in the earth's crust; occurs in clay and feldspar and granite and quartz and sand; used as a semiconductor in transistors; is a kind of chemical element, element, semiconducting material, semiconductor
CIDE DICTIONARY
silicon, n. [See Silica.].
A nonmetalic element analogous to carbon. It always occurs combined in nature, and is artificially obtained in the free state, usually as a dark brown amorphous powder, or as a dark crystalline substance with a meetallic luster. Its oxide is silica, or common quartz, and in this form, or as silicates, it is, next to oxygen, the most abundant element of the earth's crust. Silicon is characteristically the element of the mineral kingdom, as carbon is of the organic world. Symbol Si. Atomic weight 28. Called also silicium . [1913 Webster]
OXFORD DICTIONARY
silicon, n. Chem. a non-metallic element occurring widely in silica and silicates, and used in the manufacture of glass.
Idiom
silicon chip a silicon microchip. silicon carbide = CARBORUNDUM. Silicon Valley an area with a high concentration of electronics industries.
Usage
Symb.: Si.
Etymology
L silex -icis flint (after carbon, boron), alt. of earlier silicium