Crossword puzzle clue "gas that fills tubes in colorful signs"

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Here are the possible solutions for gas that fills tubes in colorful signs clue

Answer
Clue
Relevancy
neon
Clue
Gas that fills tubes in colorful signs
Gas used in colorful flashing signs
Gas found in many colorful signs
Gas in gas station signs
Inert gas in vacuum tubes
Gas in some sign tubes
Definition
a gaseous element
argon
Clue
Gas used in light tubes
Gas used in light bulbs, radio tubes, etc.
Definition
an inert gaseous element

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