__ 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.

__ Valley, San Francisco technology hub — CodyCross Answer | CodyCross Solutions