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 190 definitions for SI:

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SI

Special Interest

Governmental » Military

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SI

United States Strategic Command Strategic Instruction

Governmental » Military

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SI

Smithsonian Institute

Community » Museums

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SI

Kennedy Space Center Support Operations Directorate

Governmental » NASA

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SI

International Systems of Units (ISU preferred)

Governmental » NASA

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SI

Scientific Instrument

Governmental » NASA

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SI

Solar Inertial

Governmental » NASA

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SI

Selectable Interface

Computing » Networking

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SI

Slow Import

Computing » Networking

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SI

SAS Institute

Community » Non-Profit Organizations

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SI

ACM Government Spectrum Fund, Inc.

Business » NYSE Symbols

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SI

Smithsonian Institute

Academic & Science » Ocean Science

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SI

Système International d'unités (International System of Units)

Academic & Science » Ocean Science

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SI

Salt Institute

Business » Professional Organizations

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SI

Stand-In

Community » Performing Arts

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SI

Système International d'unités (International System of Units)

Academic & Science » Physics

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SI

Selectivity Index

Academic & Science » Physics

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SI

Slight Inclusion

Academic & Science » Physics

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SI

Speech Impaired

Medical » Physiology

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SI

SacroIliac

Medical » Physiology

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SI

Self Inflicted

Medical » Physiology

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SI

Self Inserted

Medical » Physiology

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SI

Small Intestine

Medical » Physiology

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SI

Self Injury

Medical » Physiology

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SI

Silicone

Miscellaneous » Plastics

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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. 4 Aug. 2015. <http://www.abbreviations.com/SI>.