The Clue
Ultraviolet light filter (5 letter answer)
The Answer
OZONE
Tags
Notes
The answer OZONE is seen frequently, appearing about once every 180 puzzles.
Related Clues
Atmospheric layer
Aura pura
Bluish gas
Bracing air
Clear air
Earth protector
Earth's ___ layer
Endangered layer
Form of oxygen
Fresh air
Gas in a layer
Kind of hole
Odorous oxygen
Protective layer
Pure air
Radiation reducer
Refreshing air
Thunderstorm product
Ultraviolet filter
Composition of an endangered layer
Contents of a sensitive layer
Gas with a penetrating odor
Important celestial layer
Jeopardized atmospheric layer
Layer with a hole in it
O-O-O
Pale-blue gas
Subject of environmentalist study
Triatomic oxygen molecule
Ultraviolet Index factor
Ultraviolet ray absorber
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Form of oxygen with a sharp odor
Layer in the stratosphere
A high flier may fly in it
Definition
OZONE as a noun:
1. a colorless gas (O3) soluble in alkalis and cold water; a strong oxidizing agent; can be produced by electric discharge in oxygen or by the action of ultraviolet radiation on oxygen in the stratosphere (where it acts as a screen for ultraviolet radiation)