Effluvium and Pea soup

Effluvium noun - Discarded or useless material.

Pea soup and effluvium are semantically related In some cases you can use "Pea soup" instead a noun "Effluvium".

Pea soup noun - A thick soup made of dried peas (usually made into a puree).

Effluvium and pea soup are semantically related in heavy mist that reduces visibility topic. Sometimes you can use "Effluvium" instead a noun phrase "Pea soup".