Ether and Ozone

Ether noun - Any of a class of organic compounds that have two hydrocarbon groups linked by an oxygen atom.

Ozone and ether are semantically related. In some cases you can replace term "Ozone" with "Ether", this nouns are similar.

Ozone noun - 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).

Ether and ozone are semantically related. Sometimes you can replace term "Ether" with "Ozone", this nouns are similar.