Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio.
to form in advance
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.
transitive verb pre·formed, pre·form·ing, pre·forms
- To shape or form beforehand.
- To determine the shape or form of beforehand.
- An object that has been subjected to preliminary, usually incomplete shaping or molding before undergoing complete or final processing.
- Linguistics A reconstructed ancestral word or form.