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

serious illness

Medical » British Medicine

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SI

snoring index

Medical » British Medicine

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SI

serious injury

Medical » British Medicine

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SI

seriously ill

Medical » British Medicine

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SI

Système International d'unités (International System of Units)

Academic & Science » Architecture

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SI

social interaction

Medical » British Medicine

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SI

Small Intestine

Medical » Physiology

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SI

serum iron

Medical » British Medicine

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SI

Safety Index

Miscellaneous » Construction

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SI

sagittal index

Medical » British Medicine

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SI

Système International d'unités (International System of Units)

Miscellaneous » Unit Measures

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SI

saline infusion

Medical » British Medicine

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SI

survival index

Medical » British Medicine

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SI

Sub Inspector

Governmental » Police

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SI

Standing Instruction

Business » Banking

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SI

The international system of units

Academic & Science » Mathematics

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SI

severity index

Medical » British Medicine

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SI

Smithsonian Institute

Community » Museums

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SI

United States Strategic Command Strategic Instruction

Governmental » Military

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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

sexual intercourse

Medical » British Medicine

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SI

Kennedy Space Center Support Operations Directorate

Governmental » NASA

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SI

sexually inexperienced

Medical » British Medicine

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SI

International Systems of Units (ISU preferred)

Governmental » NASA

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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 Jul 2015. <http://www.abbreviations.com/SI>.