What does SI stand for?

What does SI mean? This page is about the various possible meanings of the acronym, abbreviation, shorthand or slang term: SI.

We've found a total of 189 definitions for SI:

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SI

ACM Government Spectrum Fund, Inc.

Business » NYSE Symbols

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SI

International System

Governmental » Transportation

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SI

International Systems of Units (ISU preferred)

Governmental » NASA

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SI

Kennedy Space Center Support Operations Directorate

Governmental » NASA

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SI

s for in

Miscellaneous » Unclassified

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SI

s for International

Miscellaneous » Unclassified

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SI

SacroIliac

Medical » Physiology

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SI

SacroIliac

Medical » Hospitals

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SI

safe intake

Miscellaneous » Unclassified

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SI

Safety Index

Miscellaneous » Construction

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SI

sagittal index

Medical » British Medicine

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SI

saline infusion

Medical » British Medicine

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SI

Saline Injection

Medical » Hospitals

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SI

Salt Institute

Business » Professional Organizations

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SI

Sanctioned Individual

Community » Sports

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SI

Sandwich Islands

Regional » Countries

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SI

Sarekat Islam

International » Indonesian

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SI

SAS Institute

Community » Non-Profit Organizations

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SI

satiety index

Medical » British Medicine

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SI

Saturation Index

Academic & Science » Chemistry

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SI

SCI Corporation

Governmental » Suppliers

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SI

Science Industrielle

Business » Companies & Firms

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SI

Scientific Instrument

Governmental » NASA

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SI

Scientific Instrumentation

Academic & Science » Meteorology

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SI

Secondary Infertility

Medical » Human Genome

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What does SI mean?

silicon, Si, atomic number 14(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

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"SI." Abbreviations.com. STANDS4 LLC, 2015. Web. 31 Mar. 2015. <http://www.abbreviations.com/SI>.