Wordnet 3.0
NOUN (1)
1.
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;
[syn: silicon, Si, atomic number 14]
WordNet (r) 3.0 (2006):
atomic number 14
n 1: 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 [syn: silicon, Si, atomic
number 14]