aerator 1
noundomain: artefact
Princeton WordNet [ver.3.1]
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EnglishDefinition
an apparatus for exposing something to the air (as sewage)
Hypernym
apparatus 1
noun
equipment designed to serve a specific function
EnglishDerivationally related form
aerate 2
verb
aerate (sewage) so as to favor the growth of organisms that decompose organic matter
Hyponym
lawn aerator 1
noun
a garden tool or machine designed to create holes in the soil in which lawn grasses grow.
