si

noun Music.

the syllable used for the seventh tone of a scale and sometimes for the tone B.

Relevant Questions

What Is Si Units?

What Does Si Stand For?

What Is Si Units?

What Does Si Stand For?

Origin:
1720–30; see gamut

Dictionary.com Unabridged

International System of Units.

00:10

Si is always a great word to know.

So is bezoar. Does it mean:

a stew of meat, vegetables, potatoes, etc.

a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison.

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Symbol, Chemistry.

silicon.

Sandwich Islands.

Staten Island.

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
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Link To Si

Collins

World English Dictionary

si¹ (siː)

—n
	music a variant of te

si²

—*the internet domain name for*
	Slovenia

Si or Si Kiang¹ (ʃiː)

—n
	a variant transliteration of the Chinese name for the Xi

Si Kiang or Si Kiang¹

—n

Si²

—*the chemical symbol for*
	silicon

SI

—*symbol for*
1.	See SI unit Système International (d'Unités)

—*abbreviation for*
2.	(NZ) South Island

Xi, Hsi or Si (ʃiː)

—n
	a river in S China, rising in Yunnan province and flowing east to the Canton delta on the South China Sea: the main river system of S China. Length: about 1900 km (1200 miles)

Hsi, Hsi or Si

—n

Si, Hsi or Si

—n

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Etymonline

Word Origin & History

"yes" in It., Sp., Port.; from L. sic "so" (see sic).

Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage

Medical Dictionary

Si
The symbol for the element silicon.

SI abbr.
Système International (d'Unités) (International System of Units)

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage

Science Dictionary

Si
The symbol for silicon.

silicon

(sĭl'ĭ-kŏn') Pronunciation Key
Symbol Si
A metalloid element that occurs in both gray crystalline and brown noncrystalline forms. It is the second most abundant element in the Earth's crust and can be found only in silica and silicates. Silicon is used in glass, semiconductors, concrete, and ceramics. Atomic number 14; atomic weight 28.086; melting point 1,410°C; boiling point 2,355°C; specific gravity 2.33; valence 4. See Periodic Table.

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Computing Dictionary