Definition of Si

1. 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.


2. Noun. 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). "Today the United States is the only country in the world not totally committed to the Systeme International d'Unites"

3. Noun. The syllable naming the seventh (subtonic) note of any musical scale in solmization.
Exact synonyms: Te, Ti
Generic synonyms: Solfa Syllable

Definition of Si

1. ti [n -S] - See also: ti

Medical Definition of Si

1. International System of Units (Systeme International d'Unites). Symbol for silicon. (05 Mar 2000)

Lexicographical Neighbors of Si

Shylock
shylocked
shylocking
shylocks
shyly
shyness
shyness
shynesses
shyster
shysters
shy away from
shy person
SH domains
SH protein-tyrosine phosphatase
SI
si (current term)
Sia
SIADH
siaga
sial
sial-
sialaden
sialadenitis
sialadenitis
sialadenoncus
sialadenotropic
sialagogue
sialagogue
sialagogues
sialate 9-O-lactoyltransferase

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