Motor oil on a dipstick.Licensed from iStockPhoto
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio.
a graduated metal rod for measuring the depth of a substance in its container, as of oil in a crankcase
Used by arrangement with John Wiley & Sons, Inc.
The American Heritage® Dictionary of the English Language, 4th edition Copyright © 2010 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
- A graduated rod for measuring the depth or amount of liquid in a container, as of oil in a crankcase.
- Slang A person regarded as foolish or contemptible.