bacteria bed

1. 1.

   layer of sand or gravel used to expose sewage effluent to air and the action of microorganisms

   Broaderfilter

Questions about bacteria bed

What does bacteria bed mean?

bacteria bed means "layer of sand or gravel used to expose sewage effluent to air and the action of microorganisms".

Is bacteria bed a common word?

bacteria bed is banded "Rare" — specialist or archaic — most readers will not have met it. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.