preform definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
to form in advance
preform definition by American Heritage Dictionary
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.