si

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 (synset 114678720)
  • 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) (synset 113599470)
  • The syllable naming the seventh (subtonic) note of any musical scale in solmization (synset 106882179)

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