BACTERIA BED

Pronunciation (US):

(GB):

 I. (noun) 

Sense 1

Meaning:

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

Classified under:

Nouns denoting man-made objects

Hypernyms ("bacteria bed" is a kind of...):

filter (device that removes something from whatever passes through it)

Credits