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aerator

American  
[air-ey-ter, ey-uh-rey-] / ˈɛər eɪ tər, ˈeɪ əˌreɪ- /

noun

  1. an apparatus for aerating water or other fluids.

  2. a device for introducing air into a bin of wheat or other grain in order to prevent the accumulation of moisture, keeping it free of fungi and insects.

Etymology

Origin of aerator

First recorded in 1860–65; aerate + -or 2

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.