Dictionary definition(s) for: element set

• n., Collections of elements that have at least one characteristic in common.
• n., Collections of objects or elements that have at least one characteristic in common. For example, the set X may consist of all the elements x1, x2, x3, etc. This is written {x1, x2, x3,…} = X.
  [ Sciences - A Dictionary of Physics ]
  A Dictionary of Physics. Ed. John Daintith. Oxford University Press, 2000. Oxford Reference Online. Oxford University Press. University of British Columbia. 3 August 2006 http://www.oxfordreference.com/views/ENTRY.html?subview=Main&entry=t83.e2757