aerator

English Thesaurus

1. an apparatus for exposing something to the air (as sewage) (noun.artifact)

hypernym	:	apparatus, setup,
definition	:	equipment designed to serve a specific function (noun.artifact)

derivation	:	activate, aerate,
definition	:	aerate (sewage) so as to favor the growth of organisms that decompose organic matter (verb.change)

derivation	:	activate, aerate,
definition	:	aerate (sewage) so as to favor the growth of organisms that decompose organic matter (verb.change)