Definitions of egalitarian on the Web:

• a society without formalized differences in the access to power, influence, and wealth.
  oregonstate.edu/instruct/anth370/gloss.html
• Full political and social equality for all.
  www.saskschools.ca/curr_content/native30/glossary.html
• A term that refers to societies lacking clearly defined status differences between individuals, except for those due to sex, age, or skill. See also hierarchical.
  highered.mcgraw-hill.com/sites/007299634x/student_view0/glossary.html
• describes the principle of equal rights for all.
  wps.pearsoned.co.uk/wps/media/objects/1513/1550326/glossary/glossary.html
• Social systems in which all members of the same age/sex category are equal in the sense that they all possess the same wealth, social standing, and political influence.
  highered.mcgraw-hill.com/sites/0072549386/student_view0/chapter10/glossary.html
• a person who believes in the equality of all people
• classless: favoring social equality; "a classless society"
  wordnet.princeton.edu/perl/webwn
• Egalitarianism is the moral doctrine that equality ought to prevail throughout society. One can best understand various types of egalitarianism by asking "Who is supposed to be equal?" and "In what respect are they supposed to be equal?"
  en.wikipedia.org/wiki/Egalitarian