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 Clean the faucet aerator screens by removing them from all faucets. Olivia Mitchell, cleveland, 6 Sep. 2021 The specific system buried beneath a patch of grass between her one-story home and her vegetable garden was designed by a Japanese company called FujiClean and uses an aerator and pump to treat wastewater from three homes including Hardy’s. Connor Sheets |, al, 24 June 2021 Install a low-flow aerator to save even more water. Washington Post, 26 Apr. 2021 Opt for a shatterproof carafe and aerator for serving drinks (Bonus: this one is BPA-free and 100 percent recyclable) and acacia wood and white marble coasters to ensure said drinks aren’t sweating all over books or napkins. Sarah Baird, Country Living, 1 June 2021 For compost piles that sit on the ground, this can be done with a pitchfork or a compost aerator ($34, Walmart), which is a tool designed specifically for the task. Rita Pelczar, Better Homes & Gardens, 5 May 2021 Do this by turning the compost with a specialized compost aerator, a compost fork, or a stick. Bebe Hodges, The Enquirer, 22 Apr. 2021 If the soil is compacted, use an aerator – also available at rental shops – to open it up. oregonlive, 18 Apr. 2021 Being careful not to break any roots, use an aerator or a stick to move around the dirt every so often to prevent this from happening. Angela Watson,, 18 Apr. 2021

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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Dictionary Entries Near aerator

aerated water



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Statistics for aerator

Last Updated

11 Sep 2021

Cite this Entry

“Aerator.” Dictionary, Merriam-Webster, Accessed 26 Sep. 2021.

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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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