Silicon Valley
noun
the area in northern California, southwest of San Francisco in the Santa Clara valley region, where many of the high-technology design and manufacturing companies in the semiconductor industry are concentrated.
Origin of Silicon Valley
so called from the silicon wafers employed in semiconductor devices
British Dictionary definitions for silicon valley
Silicon Valley
noun
an industrial strip in W California, extending S of San Francisco, in which the US information technology industry is concentrated
any area in which industries associated with information technology are concentrated
Cultural definitions for silicon valley
Silicon Valley
A region on the San Francisco Peninsula in California where the miniaturized electronics industry is centered, so called because most of the devices built there are made of semiconductors such as silicon.