subnuclear[-no̵̅o̅′klē ər, -nyo̵̅o̅′-]
subnuclear 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.
designating or of any of the particles within the nuclei of atoms
subnuclear definition by American Heritage Dictionary
Of or located within the nucleus of an atom; smaller than the nucleus.