aerator

noun

aer·​a·​tor ˈer-ˌā-tər 

: one that aerates

especially : an apparatus for aerating something (such as sewage)

Examples of aerator in a Sentence

Recent Examples on the Web

Hiring a professional service provides peace of mind that the lawn will be aerated correctly and that there’s no need to figure out how to operate a core aerator. — Lauren David, Southern Living, 24 Sep. 2026

This aerator can help ensure your lawn stays healthy throughout the fall and winter by preventing the grass from becoming compacted. — Bestreviews, Chicago Tribune, 7 Sep. 2026

Core aerators remove plugs about 2 to 4 inches deep and around 1/2-inch wide, and spaced about 2 to 6 inches apart, dropping them on the lawn surface. — Mary Marlowe Leverette, The Spruce, 4 Sep. 2026

For an easy water-saving upgrade that doesn’t require replacing pre-existing fixtures, install faucet accessories like aerators that also save water and money without compromising performance. — Nafeesah Allen, Better Homes & Gardens, 10 Aug. 2026

Word History

Etymology

aerate + -or entry 1

First Known Use

1844, in the meaning defined above

Rhymes for aerator

• narrator

Medical Definition

aerator

noun

aer·​a·​tor ˈa(-ə)r-ˌāt-ər, ˈe(-ə)r- 

: one that aerates

especially : an apparatus for aerating something (as sewage)