Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio.
the ratio of the number of moles of one constituent of a mixture or solution to the total number of moles of all the constituents
Used by arrangement with John Wiley & Sons, Inc.
mole fraction - Medical Definition
nounThe American Heritage® Medical Dictionary Copyright © 2010 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
The ratio of the moles of one component of a system to the total moles of all components present.