[ˈəʊzəʊn], (Noun)

Definitions:
- a colourless unstable toxic gas with a pungent odour and powerful oxidizing properties, formed from oxygen by electrical discharges or ultraviolet light. It differs from normal oxygen (O₂) in having three atoms in its molecule (O₃)

- fresh invigorating air, especially that blowing on to the shore from the sea


Phrases:

Origin:
mid 19th century: from German Ozon, from Greek ozein ‘to smell’