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.
Really stubborn mineral buildup might require popping the aerator off and cleaning each piece individually. Daley Quinn, Southern Living, 28 Dec. 2025 Available for rent at hardware stores, core aerators have hollow tines that pull 2- to 3-inch-long cores of soil from the turf every few inches. Megan Hughes, Better Homes & Gardens, 23 Nov. 2025 When flushing internal pipes, aerators should be removed first (if applicable), prior to flushing. Jake Allen, IndyStar, 13 Aug. 2025 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

Browse Nearby Words

Cite this Entry

“Aerator.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/aerator. Accessed 6 Jan. 2026.

Medical Definition

aerator

noun
: one that aerates
especially : an apparatus for aerating something (as sewage)
Last Updated: - Updated example sentences
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