Si

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SI

abbr. French
Système International [d'Unités] (International System [of Units])

Si 1

The symbol for silicon.

Si 2

abbr. Bible
Sirach

si

 (sē)
n. Music
Ti.

[Italian, from Medieval Latin; see gamut.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

si

(siː)
n
(Classical Music) music a variant of te

si

the internet domain name for
(Computer Science) Slovenia

Si

(ʃiː) or

Si Kiang

n
(Placename) a variant transliteration of the Chinese name for the Xi

Si

the chemical symbol for
(Elements & Compounds) silicon

SI

symbol for
(Units) Système International (d'Unités). See SI unit
abbreviation for
(Placename) NZ South Island
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

SI

International System of Units.
[< French S(ystème) I(nternationale d'Unités)]

Si

Chem. Symbol. silicon.

S.I.

Staten Island.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

Si

The symbol for silicon.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.SI - a tetravalent nonmetallic elementSi - 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
chemical element, element - any of the more than 100 known substances (of which 92 occur naturally) that cannot be separated into simpler substances and that singly or in combination constitute all matter
quartz - a hard glossy mineral consisting of silicon dioxide in crystal form; present in most rocks (especially sandstone and granite); yellow sand is quartz with iron oxide impurities
clay - a very fine-grained soil that is plastic when moist but hard when fired
semiconducting material, semiconductor - a substance as germanium or silicon whose electrical conductivity is intermediate between that of a metal and an insulator; its conductivity increases with temperature and in the presence of impurities
feldspar, felspar - any of a group of hard crystalline minerals that consist of aluminum silicates of potassium or sodium or calcium or barium
granite - plutonic igneous rock having visibly crystalline texture; generally composed of feldspar and mica and quartz
sand - a loose material consisting of grains of rock or coral
silicone, silicone polymer - any of a large class of siloxanes that are unusually stable over a wide range of temperatures; used in lubricants and adhesives and coatings and synthetic rubber and electrical insulation
2.SI - a complete metric system of units of measurement for scientists; fundamental quantities are length (meter) and mass (kilogram) and time (second) and electric current (ampere) and temperature (kelvin) and amount of matter (mole) and luminous intensity (candela); "Today the United States is the only country in the world not totally committed to the Systeme International d'Unites"
metric system - a decimal system of weights and measures based on the meter and the kilogram and the second
3.si - the syllable naming the seventh (subtonic) note of any musical scale in solmization
solfa syllable - one of the names for notes of a musical scale in solmization
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
Translations

SI

N ABBR =Système Internationale (d'unités) (= system of metric units) → sistema m métrico internacional
Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005

SI

[ˌɛsˈaɪ] n abbr =Système International (d'unités)S.I. m =sistema internazionale (di misura)
Collins Italian Dictionary 1st Edition © HarperCollins Publishers 1995