Enter a clue or pattern or both:
The Clue
Forms of oxygen (6 letter answer)
The Answer
OZONES
Tags
Notes
The answer OZONES is so rare that it appears less than once every 2500 puzzles.
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)