What's Trending Now
More Trending Words
cleanout
noun
Definition of cleanout
-s
1 : the act of cleaning out a cleanout of his predecessor's assistants
2 : an opening that is usually covered by a cap, plate, or door and is provided for cleaning out an enclosure (as a furnace dome, chimney, or plumbing trap)
Read the Latest from M-W
There's more!
Love words? You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.
Start your free trial today and get unlimited access to America's largest dictionary, with:
- More than 250,000 words that aren't in our free dictionary
- Expanded definitions, etymologies, and usage notes
- Advanced search features
- Ad free!
Seen and Heard
What made you want to look up cleanout? Please tell us where you read or heard it (including the quote, if possible).
Writing? Check your grammar now!