Pyrogen and Substance

Pyrogen noun - Any substance that can cause a rise in body temperature.

Substance and pyrogen are semantically related. In some cases you can use "Substance" instead a noun "Pyrogen".

Substance noun - The basic elements from which something can be developed.

Pyrogen and substance are semantically related. Sometimes you can replace term "Pyrogen" with "Substance", this nouns are similar.

Nearby Words: substantial, substantiate, substantially, substantiality, substantiation