Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio.
transitive verb, intransitive verb
to turn in the opposite direction so as to loosen or separate; untwine
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.
verb un·twist·ed, un·twist·ing, un·twists verb, transitive
To loosen or separate (something twisted) by turning in the opposite direction; unwind.verb, intransitive
To become untwisted.