__ Valley, San Francisco Technology Hub
This page is the CodyCross answer for the clue below from Train Travel, Group 706, Puzzle 4 (Neck Pillows).
Question is: __ Valley, San Francisco Technology Hub
and the answer is: SILICON
Word Meaning:
SILICON — (chemistry, uncountable) A nonmetallic element (symbol Si) with an atomic number of 14 and atomic weight of 28.0855.
Definitions from Wiktionary.