aerator

[ air-ey-ter, ey-uh-rey- ]

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.

Word History and Origins

Origin of aerator¹

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

Example Sentences

An aerator is used before filtration during the summer, when algae are likely to develop in the reservoir.

From Project Gutenberg