He is known as a conspiracy theorist.

He is writing a thesis on the theory of general relativity.

The special theory of relativity is a theory proposed by Einstein.

Stoichiometry is a method for calculating the amount of substances in a chemical reaction.

His and her opinions ended up in a six of one, half a dozen of the other argument.

He is writing a thesis on the Yellow Peril.

An intercontinental ballistic missile is a weapon with a very large destructive power.

The launch of intercontinental ballistic missiles has become an international issue.

The intertransversarius muscle is an important part of our body, especially part of the back muscles.

He is writing a thesis on dialectical materialism.