aer·​a·​tor | \ ˈer-ˌā-tər How to pronounce aerator (audio) \

Definition of aerator

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

Examples of aerator in a Sentence

Recent Examples on the Web The aerator’s chief function is to relieve soil compaction. Adrian Higgins, Washington Post, "It’s lawn-fixing season. Here’s how to do it.," 26 Aug. 2020 Some people overseed after a thorough session with a core aerator, which extracts plugs of soil that can be crumbled after drying. Adrian Higgins, Washington Post, "It’s lawn-fixing season. Here’s how to do it.," 26 Aug. 2020 Aeration is accomplished by renting an aerator from a big box store or rental company., "What to do now to get your lawn ready for summer in San Antonio," 5 Mar. 2020 Airstone-type bubbling aerators are effective, but they should be supplemented with a jug of ice in hot weather. Bob Mcnally, Field & Stream, "The Ultimate Guide to Catching and Keeping Saltwater Live Bait," 2 Jan. 2020 Another lesson for that homeowner was learning to remove a small circular screen inside the faucet’s end, called the aerator. Bill Laitner, Detroit Free Press, "Detroit passes Michigan's stricter tests for lead contaminated water," 19 Nov. 2019 More recently, devices called aerators became popular. Dave Mcintyre, Washington Post, "Decanting demystified: When your wine needs to breathe and what to do about it," 11 Oct. 2019 The kits come with freebies including dimmable LED light bulbs, a water-saving, low-flow shower head and two faucet aerators, plus weatherstripping to seal leaks in windows and doors. San Diego Union-Tribune, "La Mesa offering energy saving tool kits with freebies," 19 Sep. 2019 For reducing water usage, the building features low-flow water fixtures, flow-restrictors, and aerators. Ivana Hrynkiw |, al, "New UAB College of Arts and Sciences opens for fall semester," 15 Aug. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'aerator.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of aerator

1844, in the meaning defined above

History and Etymology for aerator

aerate + -or entry 1

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Time Traveler for aerator

Time Traveler

The first known use of aerator was in 1844

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Statistics for aerator

Last Updated

10 Sep 2020

Cite this Entry

“Aerator.” Dictionary, Merriam-Webster, Accessed 24 Sep. 2020.

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More Definitions for aerator


aer·​a·​tor | \ ˈa(-ə)r-ˌāt-ər, ˈe(-ə)r- How to pronounce aerator (audio) \

Medical Definition of aerator

: one that aerates especially : an apparatus for aerating something (as sewage)

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