ˈa(ə)ˌrād.ə(r) etc ( see aerate ), -ātə-; chiefly substand ˈarēˌā- etc noun
( -s )
: one that aerates: as
a. : any specialized apparatus for aerating a liquid, especially water or milk
b. : a fumigator used to bleach grain, destroying fungi and insects
c. : a device with a roller equipped with hollow tines that remove cores of soil from turf