Lexic.us

Definition of Silicon

1. Noun. 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.

Definition of Silicon

1. n. 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.

Definition of Silicon

1. Noun. (chemistry) A nonmetallic element (''symbol'' Si) with an atomic number of 14 and atomic weight of 28.0855. ¹

¹ Source: wiktionary.com

Definition of Silicon

1. a nonmetallic element [n -S]

Medical Definition of Silicon

1. 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. Abbreviation: Si Atomic weight: 28. Synonym: silicium. See: Silica. Source: Websters Dictionary (01 Mar 1998)

Lexicographical Neighbors of Silicon

Literary usage of Silicon

Below you will find example usage of this term as found in modern and/or classical literature:

1. Journal by Iron and Steel Institute (1892)
"It is usually present when there is but little silicon in the metal. Indeed with over 1 per cent, of silicon it is difficult to produce a chill. ..."

2. Analytical Chemistry by Frederick Pearson Treadwell (1921)
"At. Wt. 28.3 silicon exists in two modifications, one of which is ... Amorphous silicon is a dark-brown powder, which can be oxidized by heating in the air. ..."

3. Standard Methods of Chemical Analysis: A Manual of Analytical Methods and by Wilfred Welday Scott (1922)
"Flat, or irregular shot indicate low silicon. Shot with elongated tails indicate ... Method of the US Bureau of Standards for silicon The insoluble residue ..."

4. The Encyclopaedia Britannica: A Dictionary of Arts, Sciences, and General by Thomas Spencer Baynes (1888)
"In the latter case the silicon is wholly eliminated before the carbon disappears, even when the original amount was large, ..."

5. A Dictionary of Chemical Solubilities: Inorganic by Arthur Messinger Comey, Dorothy Anna Hahn (1921)
"silicon fluoride with MF. See Fluosilicate, M. silicon fluoride ammonia, SiF4, ... silicon hydride, SiH.. Insol. in H2O. Decomp. by KC Not changed by ..."

6. Elements of Inorganic Chemistry: Including the Applications of the Science by Thomas Graham (1858)
"The silicon thus obtained exhibits, after washing and drying at a moderate I the properties described by Berzelius. silicon is fusible — its melting point ..."

7. The Metallography and Heat Treatment of Iron and Steel by Albert Sauveur (1918)
"silicon in Cast Iron. — Cast iron seldom contains less than 0.50 per cent ... As in the case of steel this silicon probably combines with some of the iron ..."

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