Merriam-Webster Logo
SINCE 1828
Menu
dictionary thesaurus

aftercooler

noun
af·​ter·​cool·​er | \ ˈaf-tər-ˌkü-lər\

Definition of aftercooler

1 : an apparatus for cooling the discharge air from air compressors in order to remove its condensed moisture
2 : a device for cooling the fuel mixture heated by compression in a supercharger

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!

First Known Use of aftercooler

1895, in the meaning defined at sense 1

History and Etymology for aftercooler

after- + cooler entry 2

Keep scrolling for more

Learn More about aftercooler

Share aftercooler

Statistics for aftercooler

Look-up Popularity

Time Traveler for aftercooler

The first known use of aftercooler was in 1895

See more words from the same year

Comments on aftercooler

What made you want to look up aftercooler? Please tell us where you read or heard it (including the quote, if possible).

Show Comments  Hide Comments 

WORD OF THE DAY

decoct

Listen to the pronounciation of decoct

to boil down or concentrate

Get Word of the Day daily email!

Test Your Vocabulary

Original Meanings Quiz

  • rembrandt-painting-a-young-scholar-and-his-tutor
  • Which of the following is the earliest known sense of the word awe?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Dictionary Devil

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

Words at Play

Ask the Editors

Word Games