aerator

noun

aer·​a·​tor ˈer-ˌā-tər How to pronounce aerator (audio)
: one that aerates
especially : an apparatus for aerating something (such as sewage)

Examples of aerator in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Add fountains or aerators to ponds. — Ryan Brennan april 30, Charlotte Observer, 30 Apr. 2026 Soak the aerator parts in a cup of straight white vinegar for 30 minutes to an hour. — Daley Quinn, Southern Living, 23 May 2026 Add a fountain or aerator to ponds, or use fish that eat mosquito larvae. — Ryan Brennan april 30, Fort Worth Star-Telegram, 30 Apr. 2026 In ponds and water features, add a fountain or aerator, or stock fish that eat larvae. — Ryan Brennan april 30, Miami Herald, 30 Apr. 2026 See All Example Sentences for aerator

Word History

Etymology

aerate + -or entry 1

First Known Use

1844, in the meaning defined above

Time Traveler
The first known use of aerator was in 1844

Rhymes for aerator

See All Rhymes for aerator

Browse Nearby Words

aeration
aerator
aerenchyma
See all Nearby Words

Cite this Entry

“Aerator.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/aerator. Accessed 7 Jul. 2026.

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Medical Definition

aerator

noun
aer·​a·​tor ˈa(-ə)r-ˌāt-ər, ˈe(-ə)r- How to pronounce aerator (audio)
: one that aerates
especially : an apparatus for aerating something (as sewage)
Last Updated: - Updated example sentences
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