Similar words: operator, liberator, generator, numerator, moderator, incinerator, accelerator, refrigerator. Meaning: n. an apparatus for exposing something to the air (as sewage).
31. The recoverer is composed of a dust-collecting chamber, fan, adsorbing container, condenser, oil-water separator, aerator and aeration pump.
More similar words: operator, liberator, generator, numerator, moderator, incinerator, accelerator, refrigerator, radio operator, Boolean operator, machine operator, telephone operator, electric generator, switchboard operator, temperature indicator, particle accelerator, electrical generator, aerate, aeration, respiratory rate, orator, oratory, curator, oratorio, narrator, teratoma, comparator, decorator, migratory, teratogen.