Enter a clue or pattern or both:

The Clue

Stratosphere layer (5 letter answer)

The Answer

OZONE

Tags


Notes

The answer OZONE is seen frequently, appearing about once every 180 puzzles.

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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)