Definitions for: Si

[n] the syllable naming the seventh (subtonic) note of any musical scale in solmization
[n] 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)
[n] 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

Webster (1913) Definition: Si [It.] (Mus.)
A syllable applied, in solmization, to the note B; more
recently, to the seventh tone of any major diatonic scale. It
was added to Guido's scale by Le Maire about the end of the
17th century.

Synonyms: atomic number 14, International System, silicon, Systeme International, Systeme International d'Unites, te, ti

See Also: chemical element, clay, element, feldspar, felspar, granite, metric system, quartz, sand, semiconducting material, semiconductor, silicone, silicone polymer, solfa syllable

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