Si — synonyms, definition

1. si (Noun)

International System International System of Units SI system SI unit Systeme International Systeme International d'Unites Ti atomic number 14 silicon te

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.

si (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). ex. "Today the United States is the only country in the world not totally committed to the SI system"

si (Noun) — The syllable naming the seventh (subtonic) note of any musical scale in solmization.

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